forked from OSchip/llvm-project
[ARM] Add new and regenerate SSAT tests. NFC
Some of these new tests should be creating SSAT. They will be fixed in a followup.
This commit is contained in:
David Green
parent
176c7f2217
commit
476de8cea3
|
|
@ -1,5 +1,6 @@
|
|||
; RUN: llc -mtriple=armv4t-eabi %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=V4T
|
||||
; RUN: llc -mtriple=armv6t2-eabi %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=V6T2
|
||||
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
||||
; RUN: llc -mtriple=armv4t-eabi %s -o - | FileCheck %s --check-prefix=V4T
|
||||
; RUN: llc -mtriple=armv6t2-eabi %s -o - | FileCheck %s --check-prefix=V6T2
|
||||
|
||||
; Check for several conditions that should result in SSAT.
|
||||
; For example, the base test is equivalent to
|
||||
|
|
@ -16,9 +17,25 @@
|
|||
; x < -k ? -k : (x > k ? k : x)
|
||||
; 32-bit base test
|
||||
define i32 @sat_base_32bit(i32 %x) #0 {
|
||||
; CHECK-LABEL: sat_base_32bit:
|
||||
; V6T2: ssat r0, #24, r0
|
||||
; V4T-NOT: ssat
|
||||
; V4T-LABEL: sat_base_32bit:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: ldr r1, .LCPI0_0
|
||||
; V4T-NEXT: cmp r0, r1
|
||||
; V4T-NEXT: movlt r1, r0
|
||||
; V4T-NEXT: mov r0, #1065353216
|
||||
; V4T-NEXT: orr r0, r0, #-1073741824
|
||||
; V4T-NEXT: cmn r1, #8388608
|
||||
; V4T-NEXT: movgt r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI0_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6T2-LABEL: sat_base_32bit:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: ssat r0, #24, r0
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%0 = icmp slt i32 %x, 8388607
|
||||
%saturateUp = select i1 %0, i32 %x, i32 8388607
|
||||
|
|
@ -30,9 +47,29 @@ entry:
|
|||
; x < -k ? -k : (x > k ? k : x)
|
||||
; 16-bit base test
|
||||
define i16 @sat_base_16bit(i16 %x) #0 {
|
||||
; CHECK-LABEL: sat_base_16bit:
|
||||
; V6T2: ssat r0, #12, r0
|
||||
; V4T-NOT: ssat
|
||||
; V4T-LABEL: sat_base_16bit:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: mov r2, #255
|
||||
; V4T-NEXT: lsl r1, r0, #16
|
||||
; V4T-NEXT: orr r2, r2, #1792
|
||||
; V4T-NEXT: asr r1, r1, #16
|
||||
; V4T-NEXT: cmp r1, r2
|
||||
; V4T-NEXT: movlt r2, r0
|
||||
; V4T-NEXT: lsl r0, r2, #16
|
||||
; V4T-NEXT: asr r1, r0, #16
|
||||
; V4T-NEXT: ldr r0, .LCPI1_0
|
||||
; V4T-NEXT: cmn r1, #2048
|
||||
; V4T-NEXT: movgt r0, r2
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI1_0:
|
||||
; V4T-NEXT: .long 4294965248 @ 0xfffff800
|
||||
;
|
||||
; V6T2-LABEL: sat_base_16bit:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: ssat r0, #12, r0
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%0 = icmp slt i16 %x, 2047
|
||||
%saturateUp = select i1 %0, i16 %x, i16 2047
|
||||
|
|
@ -44,9 +81,22 @@ entry:
|
|||
; x < -k ? -k : (x > k ? k : x)
|
||||
; 8-bit base test
|
||||
define i8 @sat_base_8bit(i8 %x) #0 {
|
||||
; CHECK-LABEL: sat_base_8bit:
|
||||
; V6T2: ssat r0, #6, r0
|
||||
; V4T-NOT: ssat
|
||||
; V4T-LABEL: sat_base_8bit:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: lsl r1, r0, #24
|
||||
; V4T-NEXT: asr r1, r1, #24
|
||||
; V4T-NEXT: cmp r1, #31
|
||||
; V4T-NEXT: movge r0, #31
|
||||
; V4T-NEXT: lsl r1, r0, #24
|
||||
; V4T-NEXT: asr r1, r1, #24
|
||||
; V4T-NEXT: cmn r1, #32
|
||||
; V4T-NEXT: mvnle r0, #31
|
||||
; V4T-NEXT: bx lr
|
||||
;
|
||||
; V6T2-LABEL: sat_base_8bit:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: ssat r0, #6, r0
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%0 = icmp slt i8 %x, 31
|
||||
%saturateUp = select i1 %0, i8 %x, i8 31
|
||||
|
|
@ -63,9 +113,25 @@ entry:
|
|||
|
||||
; x < -k ? -k : (x < k ? x : k)
|
||||
define i32 @sat_lower_upper_1(i32 %x) #0 {
|
||||
; CHECK-LABEL: sat_lower_upper_1:
|
||||
; V6T2: ssat r0, #24, r0
|
||||
; V4T-NOT: ssat
|
||||
; V4T-LABEL: sat_lower_upper_1:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: ldr r1, .LCPI3_0
|
||||
; V4T-NEXT: cmp r0, r1
|
||||
; V4T-NEXT: movlt r1, r0
|
||||
; V4T-NEXT: mov r0, #1065353216
|
||||
; V4T-NEXT: orr r0, r0, #-1073741824
|
||||
; V4T-NEXT: cmn r1, #8388608
|
||||
; V4T-NEXT: movgt r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI3_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6T2-LABEL: sat_lower_upper_1:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: ssat r0, #24, r0
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%cmpUp = icmp slt i32 %x, 8388607
|
||||
%saturateUp = select i1 %cmpUp, i32 %x, i32 8388607
|
||||
|
|
@ -76,9 +142,25 @@ entry:
|
|||
|
||||
; x > -k ? (x > k ? k : x) : -k
|
||||
define i32 @sat_lower_upper_2(i32 %x) #0 {
|
||||
; CHECK-LABEL: sat_lower_upper_2:
|
||||
; V6T2: ssat r0, #24, r0
|
||||
; V4T-NOT: ssat
|
||||
; V4T-LABEL: sat_lower_upper_2:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: ldr r1, .LCPI4_0
|
||||
; V4T-NEXT: cmp r0, r1
|
||||
; V4T-NEXT: movlt r1, r0
|
||||
; V4T-NEXT: mov r0, #1065353216
|
||||
; V4T-NEXT: orr r0, r0, #-1073741824
|
||||
; V4T-NEXT: cmn r1, #8388608
|
||||
; V4T-NEXT: movgt r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI4_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6T2-LABEL: sat_lower_upper_2:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: ssat r0, #24, r0
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%0 = icmp slt i32 %x, 8388607
|
||||
%saturateUp = select i1 %0, i32 %x, i32 8388607
|
||||
|
|
@ -89,9 +171,26 @@ entry:
|
|||
|
||||
; x < k ? (x < -k ? -k : x) : k
|
||||
define i32 @sat_upper_lower_1(i32 %x) #0 {
|
||||
; CHECK-LABEL: sat_upper_lower_1:
|
||||
; V6T2: ssat r0, #24, r0
|
||||
; V4T-NOT: ssat
|
||||
; V4T-LABEL: sat_upper_lower_1:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: mov r1, #1065353216
|
||||
; V4T-NEXT: cmn r0, #8388608
|
||||
; V4T-NEXT: orr r1, r1, #-1073741824
|
||||
; V4T-NEXT: movgt r1, r0
|
||||
; V4T-NEXT: ldr r0, .LCPI5_0
|
||||
; V4T-NEXT: cmp r1, r0
|
||||
; V4T-NEXT: movge r1, r0
|
||||
; V4T-NEXT: mov r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI5_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6T2-LABEL: sat_upper_lower_1:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: ssat r0, #24, r0
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%0 = icmp sgt i32 %x, -8388608
|
||||
%saturateLow = select i1 %0, i32 %x, i32 -8388608
|
||||
|
|
@ -102,9 +201,26 @@ entry:
|
|||
|
||||
; x > k ? k : (x < -k ? -k : x)
|
||||
define i32 @sat_upper_lower_2(i32 %x) #0 {
|
||||
; CHECK-LABEL: sat_upper_lower_2:
|
||||
; V6T2: ssat r0, #24, r0
|
||||
; V4T-NOT: ssat
|
||||
; V4T-LABEL: sat_upper_lower_2:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: mov r1, #1065353216
|
||||
; V4T-NEXT: cmn r0, #8388608
|
||||
; V4T-NEXT: orr r1, r1, #-1073741824
|
||||
; V4T-NEXT: movgt r1, r0
|
||||
; V4T-NEXT: ldr r0, .LCPI6_0
|
||||
; V4T-NEXT: cmp r1, r0
|
||||
; V4T-NEXT: movge r1, r0
|
||||
; V4T-NEXT: mov r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI6_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6T2-LABEL: sat_upper_lower_2:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: ssat r0, #24, r0
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%0 = icmp sgt i32 %x, -8388608
|
||||
%saturateLow = select i1 %0, i32 %x, i32 -8388608
|
||||
|
|
@ -115,9 +231,26 @@ entry:
|
|||
|
||||
; k < x ? k : (x > -k ? x : -k)
|
||||
define i32 @sat_upper_lower_3(i32 %x) #0 {
|
||||
; CHECK-LABEL: sat_upper_lower_3:
|
||||
; V6T2: ssat r0, #24, r0
|
||||
; V4T-NOT: ssat
|
||||
; V4T-LABEL: sat_upper_lower_3:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: mov r1, #1065353216
|
||||
; V4T-NEXT: cmn r0, #8388608
|
||||
; V4T-NEXT: orr r1, r1, #-1073741824
|
||||
; V4T-NEXT: movgt r1, r0
|
||||
; V4T-NEXT: ldr r0, .LCPI7_0
|
||||
; V4T-NEXT: cmp r1, r0
|
||||
; V4T-NEXT: movge r1, r0
|
||||
; V4T-NEXT: mov r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI7_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6T2-LABEL: sat_upper_lower_3:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: ssat r0, #24, r0
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%cmpLow = icmp sgt i32 %x, -8388608
|
||||
%saturateLow = select i1 %cmpLow, i32 %x, i32 -8388608
|
||||
|
|
@ -133,9 +266,26 @@ entry:
|
|||
; Check that >= and <= work the same as > and <
|
||||
; k <= x ? k : (x >= -k ? x : -k)
|
||||
define i32 @sat_le_ge(i32 %x) #0 {
|
||||
; CHECK-LABEL: sat_le_ge:
|
||||
; V6T2: ssat r0, #24, r0
|
||||
; V4T-NOT: ssat
|
||||
; V4T-LABEL: sat_le_ge:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: mov r1, #1065353216
|
||||
; V4T-NEXT: cmn r0, #8388608
|
||||
; V4T-NEXT: orr r1, r1, #-1073741824
|
||||
; V4T-NEXT: movgt r1, r0
|
||||
; V4T-NEXT: ldr r0, .LCPI8_0
|
||||
; V4T-NEXT: cmp r1, r0
|
||||
; V4T-NEXT: movge r1, r0
|
||||
; V4T-NEXT: mov r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI8_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6T2-LABEL: sat_le_ge:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: ssat r0, #24, r0
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%0 = icmp sgt i32 %x, -8388608
|
||||
%saturateLow = select i1 %0, i32 %x, i32 -8388608
|
||||
|
|
@ -152,8 +302,33 @@ entry:
|
|||
; x > k ? k : (x > -k ? -k : x)
|
||||
; First condition upper-saturates, second doesn't lower-saturate.
|
||||
define i32 @no_sat_missing_lower(i32 %x) #0 {
|
||||
; CHECK-LABEL: no_sat_missing_lower
|
||||
; CHECK-NOT: ssat
|
||||
; V4T-LABEL: no_sat_missing_lower:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: mov r2, #1065353216
|
||||
; V4T-NEXT: cmn r0, #8388608
|
||||
; V4T-NEXT: orr r2, r2, #-1073741824
|
||||
; V4T-NEXT: ldr r1, .LCPI9_0
|
||||
; V4T-NEXT: movlt r2, r0
|
||||
; V4T-NEXT: cmp r0, #8388608
|
||||
; V4T-NEXT: movlt r1, r2
|
||||
; V4T-NEXT: mov r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI9_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6T2-LABEL: no_sat_missing_lower:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: movw r1, #0
|
||||
; V6T2-NEXT: cmn r0, #8388608
|
||||
; V6T2-NEXT: movt r1, #65408
|
||||
; V6T2-NEXT: movlt r1, r0
|
||||
; V6T2-NEXT: cmp r0, #8388608
|
||||
; V6T2-NEXT: movwge r1, #65535
|
||||
; V6T2-NEXT: movtge r1, #127
|
||||
; V6T2-NEXT: mov r0, r1
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%cmpUp = icmp sgt i32 %x, 8388607
|
||||
%0 = icmp slt i32 %x, -8388608
|
||||
|
|
@ -165,8 +340,35 @@ entry:
|
|||
; x < k ? k : (x < -k ? -k : x)
|
||||
; Second condition lower-saturates, first doesn't upper-saturate.
|
||||
define i32 @no_sat_missing_upper(i32 %x) #0 {
|
||||
; CHECK-LABEL: no_sat_missing_upper:
|
||||
; CHECK-NOT: ssat
|
||||
; V4T-LABEL: no_sat_missing_upper:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: mov r1, #1065353216
|
||||
; V4T-NEXT: ldr r2, .LCPI10_0
|
||||
; V4T-NEXT: orr r1, r1, #-1073741824
|
||||
; V4T-NEXT: cmn r0, #8388608
|
||||
; V4T-NEXT: movgt r1, r0
|
||||
; V4T-NEXT: cmp r0, r2
|
||||
; V4T-NEXT: movlt r1, r2
|
||||
; V4T-NEXT: mov r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI10_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6T2-LABEL: no_sat_missing_upper:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: movw r1, #0
|
||||
; V6T2-NEXT: movw r2, #65535
|
||||
; V6T2-NEXT: movt r1, #65408
|
||||
; V6T2-NEXT: cmn r0, #8388608
|
||||
; V6T2-NEXT: movgt r1, r0
|
||||
; V6T2-NEXT: movt r2, #127
|
||||
; V6T2-NEXT: cmp r0, r2
|
||||
; V6T2-NEXT: movwlt r1, #65535
|
||||
; V6T2-NEXT: movtlt r1, #127
|
||||
; V6T2-NEXT: mov r0, r1
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%cmpUp = icmp slt i32 %x, 8388607
|
||||
%0 = icmp sgt i32 %x, -8388608
|
||||
|
|
@ -177,8 +379,35 @@ entry:
|
|||
|
||||
; Lower constant is different in the select and in the compare
|
||||
define i32 @no_sat_incorrect_constant(i32 %x) #0 {
|
||||
; CHECK-LABEL: no_sat_incorrect_constant:
|
||||
; CHECK-NOT: ssat
|
||||
; V4T-LABEL: no_sat_incorrect_constant:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: mov r2, #1065353216
|
||||
; V4T-NEXT: cmn r0, #8388608
|
||||
; V4T-NEXT: orr r2, r2, #-1073741824
|
||||
; V4T-NEXT: mov r1, r0
|
||||
; V4T-NEXT: orrlt r1, r2, #1
|
||||
; V4T-NEXT: ldr r2, .LCPI11_0
|
||||
; V4T-NEXT: cmp r0, #8388608
|
||||
; V4T-NEXT: movge r1, r2
|
||||
; V4T-NEXT: mov r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI11_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6T2-LABEL: no_sat_incorrect_constant:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: movw r2, #0
|
||||
; V6T2-NEXT: cmn r0, #8388608
|
||||
; V6T2-NEXT: mov r1, r0
|
||||
; V6T2-NEXT: movt r2, #65408
|
||||
; V6T2-NEXT: orrlt r1, r2, #1
|
||||
; V6T2-NEXT: cmp r0, #8388608
|
||||
; V6T2-NEXT: movwge r1, #65535
|
||||
; V6T2-NEXT: movtge r1, #127
|
||||
; V6T2-NEXT: mov r0, r1
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%cmpUp = icmp sgt i32 %x, 8388607
|
||||
%cmpLow = icmp slt i32 %x, -8388608
|
||||
|
|
@ -189,8 +418,35 @@ entry:
|
|||
|
||||
; The interval is not [k, ~k]
|
||||
define i32 @no_sat_incorrect_interval(i32 %x) #0 {
|
||||
; CHECK-LABEL: no_sat_incorrect_interval:
|
||||
; CHECK-NOT: ssat
|
||||
; V4T-LABEL: no_sat_incorrect_interval:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: ldr r1, .LCPI12_0
|
||||
; V4T-NEXT: cmp r0, r1
|
||||
; V4T-NEXT: movgt r1, r0
|
||||
; V4T-NEXT: ldr r0, .LCPI12_1
|
||||
; V4T-NEXT: cmp r1, r0
|
||||
; V4T-NEXT: movge r1, r0
|
||||
; V4T-NEXT: mov r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI12_0:
|
||||
; V4T-NEXT: .long 4275878552 @ 0xfedcba98
|
||||
; V4T-NEXT: .LCPI12_1:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6T2-LABEL: no_sat_incorrect_interval:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: movw r1, #47768
|
||||
; V6T2-NEXT: movt r1, #65244
|
||||
; V6T2-NEXT: cmp r0, r1
|
||||
; V6T2-NEXT: movgt r1, r0
|
||||
; V6T2-NEXT: movw r0, #65535
|
||||
; V6T2-NEXT: movt r0, #127
|
||||
; V6T2-NEXT: cmp r1, r0
|
||||
; V6T2-NEXT: movge r1, r0
|
||||
; V6T2-NEXT: mov r0, r1
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%0 = icmp sgt i32 %x, -19088744
|
||||
%saturateLow = select i1 %0, i32 %x, i32 -19088744
|
||||
|
|
@ -201,8 +457,32 @@ entry:
|
|||
|
||||
; The returned value (y) is not the same as the tested value (x).
|
||||
define i32 @no_sat_incorrect_return(i32 %x, i32 %y) #0 {
|
||||
; CHECK-LABEL: no_sat_incorrect_return:
|
||||
; CHECK-NOT: ssat
|
||||
; V4T-LABEL: no_sat_incorrect_return:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: mov r2, #1065353216
|
||||
; V4T-NEXT: cmn r0, #8388608
|
||||
; V4T-NEXT: orr r2, r2, #-1073741824
|
||||
; V4T-NEXT: movge r2, r1
|
||||
; V4T-NEXT: ldr r1, .LCPI13_0
|
||||
; V4T-NEXT: cmp r0, #8388608
|
||||
; V4T-NEXT: movlt r1, r2
|
||||
; V4T-NEXT: mov r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI13_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6T2-LABEL: no_sat_incorrect_return:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: cmn r0, #8388608
|
||||
; V6T2-NEXT: movwlt r1, #0
|
||||
; V6T2-NEXT: movtlt r1, #65408
|
||||
; V6T2-NEXT: cmp r0, #8388608
|
||||
; V6T2-NEXT: movwge r1, #65535
|
||||
; V6T2-NEXT: movtge r1, #127
|
||||
; V6T2-NEXT: mov r0, r1
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%cmpUp = icmp sgt i32 %x, 8388607
|
||||
%cmpLow = icmp slt i32 %x, -8388608
|
||||
|
|
@ -214,8 +494,33 @@ entry:
|
|||
; One of the values in a compare (y) is not the same as the rest
|
||||
; of the compare and select values (x).
|
||||
define i32 @no_sat_incorrect_compare(i32 %x, i32 %y) #0 {
|
||||
; CHECK-LABEL: no_sat_incorrect_compare:
|
||||
; CHECK-NOT: ssat
|
||||
; V4T-LABEL: no_sat_incorrect_compare:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: mov r2, #1065353216
|
||||
; V4T-NEXT: cmn r1, #8388608
|
||||
; V4T-NEXT: orr r2, r2, #-1073741824
|
||||
; V4T-NEXT: ldr r1, .LCPI14_0
|
||||
; V4T-NEXT: movge r2, r0
|
||||
; V4T-NEXT: cmp r0, #8388608
|
||||
; V4T-NEXT: movlt r1, r2
|
||||
; V4T-NEXT: mov r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI14_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6T2-LABEL: no_sat_incorrect_compare:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: cmn r1, #8388608
|
||||
; V6T2-NEXT: mov r1, r0
|
||||
; V6T2-NEXT: movwlt r1, #0
|
||||
; V6T2-NEXT: movtlt r1, #65408
|
||||
; V6T2-NEXT: cmp r0, #8388608
|
||||
; V6T2-NEXT: movwge r1, #65535
|
||||
; V6T2-NEXT: movtge r1, #127
|
||||
; V6T2-NEXT: mov r0, r1
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%cmpUp = icmp sgt i32 %x, 8388607
|
||||
%cmpLow = icmp slt i32 %y, -8388608
|
||||
|
|
@ -223,3 +528,102 @@ entry:
|
|||
%saturateUp = select i1 %cmpUp, i32 8388607, i32 %saturateLow
|
||||
ret i32 %saturateUp
|
||||
}
|
||||
|
||||
define void @extended(i32 %xx, i16 signext %y, i8* nocapture %z) {
|
||||
; V4T-LABEL: extended:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: add r0, r1, r0, lsr #16
|
||||
; V4T-NEXT: lsl r1, r0, #16
|
||||
; V4T-NEXT: asr r1, r1, #16
|
||||
; V4T-NEXT: cmp r1, #127
|
||||
; V4T-NEXT: movge r0, #127
|
||||
; V4T-NEXT: lsl r1, r0, #16
|
||||
; V4T-NEXT: asr r1, r1, #16
|
||||
; V4T-NEXT: cmn r1, #128
|
||||
; V4T-NEXT: mvnle r0, #127
|
||||
; V4T-NEXT: strb r0, [r2]
|
||||
; V4T-NEXT: bx lr
|
||||
;
|
||||
; V6T2-LABEL: extended:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: add r0, r1, r0, lsr #16
|
||||
; V6T2-NEXT: ssat r0, #8, r0
|
||||
; V6T2-NEXT: strb r0, [r2]
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%0 = lshr i32 %xx, 16
|
||||
%1 = trunc i32 %0 to i16
|
||||
%conv3 = add i16 %1, %y
|
||||
%cmp.i = icmp slt i16 %conv3, 127
|
||||
%cond.i = select i1 %cmp.i, i16 %conv3, i16 127
|
||||
%cmp.i11 = icmp sgt i16 %cond.i, -128
|
||||
%cond.i12 = select i1 %cmp.i11, i16 %cond.i, i16 -128
|
||||
%conv5 = trunc i16 %cond.i12 to i8
|
||||
store i8 %conv5, i8* %z, align 1
|
||||
ret void
|
||||
}
|
||||
|
||||
|
||||
define i32 @formulated_valid(i32 %a) {
|
||||
; V4T-LABEL: formulated_valid:
|
||||
; V4T: @ %bb.0:
|
||||
; V4T-NEXT: lsl r1, r0, #16
|
||||
; V4T-NEXT: asr r1, r1, #16
|
||||
; V4T-NEXT: cmp r1, #127
|
||||
; V4T-NEXT: movge r0, #127
|
||||
; V4T-NEXT: lsl r1, r0, #16
|
||||
; V4T-NEXT: asr r1, r1, #16
|
||||
; V4T-NEXT: cmn r1, #128
|
||||
; V4T-NEXT: mov r1, #255
|
||||
; V4T-NEXT: mvnle r0, #127
|
||||
; V4T-NEXT: orr r1, r1, #65280
|
||||
; V4T-NEXT: and r0, r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
;
|
||||
; V6T2-LABEL: formulated_valid:
|
||||
; V6T2: @ %bb.0:
|
||||
; V6T2-NEXT: ssat r0, #8, r0
|
||||
; V6T2-NEXT: uxth r0, r0
|
||||
; V6T2-NEXT: bx lr
|
||||
%x1 = trunc i32 %a to i16
|
||||
%x2 = sext i16 %x1 to i32
|
||||
%c1 = icmp slt i32 %x2, 127
|
||||
%s1 = select i1 %c1, i32 %a, i32 127
|
||||
%y1 = trunc i32 %s1 to i16
|
||||
%y2 = sext i16 %y1 to i32
|
||||
%c2 = icmp sgt i32 %y2, -128
|
||||
%s2 = select i1 %c2, i32 %s1, i32 -128
|
||||
%r = and i32 %s2, 65535
|
||||
ret i32 %r
|
||||
}
|
||||
|
||||
define i32 @formulated_invalid(i32 %a) {
|
||||
; V4T-LABEL: formulated_invalid:
|
||||
; V4T: @ %bb.0:
|
||||
; V4T-NEXT: lsl r1, r0, #16
|
||||
; V4T-NEXT: asr r1, r1, #16
|
||||
; V4T-NEXT: cmp r1, #127
|
||||
; V4T-NEXT: movge r0, #127
|
||||
; V4T-NEXT: lsl r1, r0, #16
|
||||
; V4T-NEXT: asr r1, r1, #16
|
||||
; V4T-NEXT: cmn r1, #128
|
||||
; V4T-NEXT: mvnle r0, #127
|
||||
; V4T-NEXT: bic r0, r0, #-16777216
|
||||
; V4T-NEXT: bx lr
|
||||
;
|
||||
; V6T2-LABEL: formulated_invalid:
|
||||
; V6T2: @ %bb.0:
|
||||
; V6T2-NEXT: ssat r0, #8, r0
|
||||
; V6T2-NEXT: bic r0, r0, #-16777216
|
||||
; V6T2-NEXT: bx lr
|
||||
%x1 = trunc i32 %a to i16
|
||||
%x2 = sext i16 %x1 to i32
|
||||
%c1 = icmp slt i32 %x2, 127
|
||||
%s1 = select i1 %c1, i32 %a, i32 127
|
||||
%y1 = trunc i32 %s1 to i16
|
||||
%y2 = sext i16 %y1 to i32
|
||||
%c2 = icmp sgt i32 %y2, -128
|
||||
%s2 = select i1 %c2, i32 %s1, i32 -128
|
||||
%r = and i32 %s2, 16777215
|
||||
ret i32 %r
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,6 +1,7 @@
|
|||
; RUN: llc -mtriple=armv4t-eabi %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=V4T
|
||||
; RUN: llc -mtriple=armv6-eabi %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=V6
|
||||
; RUN: llc -mtriple=armv6t2-eabi %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=V6T2
|
||||
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
||||
; RUN: llc -mtriple=armv4t-eabi %s -o - | FileCheck %s --check-prefix=V4T
|
||||
; RUN: llc -mtriple=armv6-eabi %s -o - | FileCheck %s --check-prefix=V6
|
||||
; RUN: llc -mtriple=armv6t2-eabi %s -o - | FileCheck %s --check-prefix=V6T2
|
||||
|
||||
; Check for several conditions that should result in USAT.
|
||||
; For example, the base test is equivalent to
|
||||
|
|
@ -17,10 +18,27 @@
|
|||
; x < 0 ? 0 : (x > k ? k : x)
|
||||
; 32-bit base test
|
||||
define i32 @unsigned_sat_base_32bit(i32 %x) #0 {
|
||||
; CHECK-LABEL: unsigned_sat_base_32bit:
|
||||
; V6: usat r0, #23, r0
|
||||
; V6T2: usat r0, #23, r0
|
||||
; V4T-NOT: usat
|
||||
; V4T-LABEL: unsigned_sat_base_32bit:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: ldr r1, .LCPI0_0
|
||||
; V4T-NEXT: cmp r0, r1
|
||||
; V4T-NEXT: movlt r1, r0
|
||||
; V4T-NEXT: bic r0, r1, r1, asr #31
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI0_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6-LABEL: unsigned_sat_base_32bit:
|
||||
; V6: @ %bb.0: @ %entry
|
||||
; V6-NEXT: usat r0, #23, r0
|
||||
; V6-NEXT: bx lr
|
||||
;
|
||||
; V6T2-LABEL: unsigned_sat_base_32bit:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: usat r0, #23, r0
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%0 = icmp slt i32 %x, 8388607
|
||||
%saturateUp = select i1 %0, i32 %x, i32 8388607
|
||||
|
|
@ -32,10 +50,30 @@ entry:
|
|||
; x < 0 ? 0 : (x > k ? k : x)
|
||||
; 16-bit base test
|
||||
define i16 @unsigned_sat_base_16bit(i16 %x) #0 {
|
||||
; CHECK-LABEL: unsigned_sat_base_16bit:
|
||||
; V6: usat r0, #11, r0
|
||||
; V6T2: usat r0, #11, r0
|
||||
; V4T-NOT: usat
|
||||
; V4T-LABEL: unsigned_sat_base_16bit:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: lsl r1, r0, #16
|
||||
; V4T-NEXT: asr r2, r1, #16
|
||||
; V4T-NEXT: mov r1, #255
|
||||
; V4T-NEXT: orr r1, r1, #1792
|
||||
; V4T-NEXT: cmp r2, r1
|
||||
; V4T-NEXT: movlt r1, r0
|
||||
; V4T-NEXT: lsl r0, r1, #16
|
||||
; V4T-NEXT: asr r0, r0, #16
|
||||
; V4T-NEXT: cmp r0, #0
|
||||
; V4T-NEXT: movle r1, #0
|
||||
; V4T-NEXT: mov r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
;
|
||||
; V6-LABEL: unsigned_sat_base_16bit:
|
||||
; V6: @ %bb.0: @ %entry
|
||||
; V6-NEXT: usat r0, #11, r0
|
||||
; V6-NEXT: bx lr
|
||||
;
|
||||
; V6T2-LABEL: unsigned_sat_base_16bit:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: usat r0, #11, r0
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%0 = icmp slt i16 %x, 2047
|
||||
%saturateUp = select i1 %0, i16 %x, i16 2047
|
||||
|
|
@ -47,10 +85,27 @@ entry:
|
|||
; x < 0 ? 0 : (x > k ? k : x)
|
||||
; 8-bit base test
|
||||
define i8 @unsigned_sat_base_8bit(i8 %x) #0 {
|
||||
; CHECK-LABEL: unsigned_sat_base_8bit:
|
||||
; V6: usat r0, #5, r0
|
||||
; V6T2: usat r0, #5, r0
|
||||
; V4T-NOT: usat
|
||||
; V4T-LABEL: unsigned_sat_base_8bit:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: lsl r1, r0, #24
|
||||
; V4T-NEXT: asr r1, r1, #24
|
||||
; V4T-NEXT: cmp r1, #31
|
||||
; V4T-NEXT: movge r0, #31
|
||||
; V4T-NEXT: lsl r1, r0, #24
|
||||
; V4T-NEXT: asr r1, r1, #24
|
||||
; V4T-NEXT: cmp r1, #0
|
||||
; V4T-NEXT: movle r0, #0
|
||||
; V4T-NEXT: bx lr
|
||||
;
|
||||
; V6-LABEL: unsigned_sat_base_8bit:
|
||||
; V6: @ %bb.0: @ %entry
|
||||
; V6-NEXT: usat r0, #5, r0
|
||||
; V6-NEXT: bx lr
|
||||
;
|
||||
; V6T2-LABEL: unsigned_sat_base_8bit:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: usat r0, #5, r0
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%0 = icmp slt i8 %x, 31
|
||||
%saturateUp = select i1 %0, i8 %x, i8 31
|
||||
|
|
@ -66,10 +121,27 @@ entry:
|
|||
;
|
||||
; x < 0 ? 0 : (x < k ? x : k)
|
||||
define i32 @unsigned_sat_lower_upper_1(i32 %x) #0 {
|
||||
; CHECK-LABEL: unsigned_sat_lower_upper_1:
|
||||
; V6: usat r0, #23, r0
|
||||
; V6T2: usat r0, #23, r0
|
||||
; V4T-NOT: usat
|
||||
; V4T-LABEL: unsigned_sat_lower_upper_1:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: ldr r1, .LCPI3_0
|
||||
; V4T-NEXT: cmp r0, r1
|
||||
; V4T-NEXT: movlt r1, r0
|
||||
; V4T-NEXT: bic r0, r1, r1, asr #31
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI3_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6-LABEL: unsigned_sat_lower_upper_1:
|
||||
; V6: @ %bb.0: @ %entry
|
||||
; V6-NEXT: usat r0, #23, r0
|
||||
; V6-NEXT: bx lr
|
||||
;
|
||||
; V6T2-LABEL: unsigned_sat_lower_upper_1:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: usat r0, #23, r0
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%cmpUp = icmp slt i32 %x, 8388607
|
||||
%saturateUp = select i1 %cmpUp, i32 %x, i32 8388607
|
||||
|
|
@ -80,10 +152,27 @@ entry:
|
|||
|
||||
; x > 0 ? (x > k ? k : x) : 0
|
||||
define i32 @unsigned_sat_lower_upper_2(i32 %x) #0 {
|
||||
; CHECK-LABEL: unsigned_sat_lower_upper_2:
|
||||
; V6: usat r0, #23, r0
|
||||
; V6T2: usat r0, #23, r0
|
||||
; V4T-NOT: usat
|
||||
; V4T-LABEL: unsigned_sat_lower_upper_2:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: ldr r1, .LCPI4_0
|
||||
; V4T-NEXT: cmp r0, r1
|
||||
; V4T-NEXT: movlt r1, r0
|
||||
; V4T-NEXT: bic r0, r1, r1, asr #31
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI4_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6-LABEL: unsigned_sat_lower_upper_2:
|
||||
; V6: @ %bb.0: @ %entry
|
||||
; V6-NEXT: usat r0, #23, r0
|
||||
; V6-NEXT: bx lr
|
||||
;
|
||||
; V6T2-LABEL: unsigned_sat_lower_upper_2:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: usat r0, #23, r0
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%0 = icmp slt i32 %x, 8388607
|
||||
%saturateUp = select i1 %0, i32 %x, i32 8388607
|
||||
|
|
@ -94,10 +183,27 @@ entry:
|
|||
|
||||
; x < k ? (x < 0 ? 0 : x) : k
|
||||
define i32 @unsigned_sat_upper_lower_1(i32 %x) #0 {
|
||||
; CHECK-LABEL: unsigned_sat_upper_lower_1:
|
||||
; V6: usat r0, #23, r0
|
||||
; V6T2: usat r0, #23, r0
|
||||
; V4T-NOT: usat
|
||||
; V4T-LABEL: unsigned_sat_upper_lower_1:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: bic r1, r0, r0, asr #31
|
||||
; V4T-NEXT: ldr r0, .LCPI5_0
|
||||
; V4T-NEXT: cmp r1, r0
|
||||
; V4T-NEXT: movlt r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI5_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6-LABEL: unsigned_sat_upper_lower_1:
|
||||
; V6: @ %bb.0: @ %entry
|
||||
; V6-NEXT: usat r0, #23, r0
|
||||
; V6-NEXT: bx lr
|
||||
;
|
||||
; V6T2-LABEL: unsigned_sat_upper_lower_1:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: usat r0, #23, r0
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%0 = icmp sgt i32 %x, 0
|
||||
%saturateLow = select i1 %0, i32 %x, i32 0
|
||||
|
|
@ -108,10 +214,27 @@ entry:
|
|||
|
||||
; x > k ? k : (x < 0 ? 0 : x)
|
||||
define i32 @unsigned_sat_upper_lower_2(i32 %x) #0 {
|
||||
; CHECK-LABEL: unsigned_sat_upper_lower_2:
|
||||
; V6: usat r0, #23, r0
|
||||
; V6T2: usat r0, #23, r0
|
||||
; V4T-NOT: usat
|
||||
; V4T-LABEL: unsigned_sat_upper_lower_2:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: bic r1, r0, r0, asr #31
|
||||
; V4T-NEXT: ldr r0, .LCPI6_0
|
||||
; V4T-NEXT: cmp r1, r0
|
||||
; V4T-NEXT: movlt r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI6_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6-LABEL: unsigned_sat_upper_lower_2:
|
||||
; V6: @ %bb.0: @ %entry
|
||||
; V6-NEXT: usat r0, #23, r0
|
||||
; V6-NEXT: bx lr
|
||||
;
|
||||
; V6T2-LABEL: unsigned_sat_upper_lower_2:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: usat r0, #23, r0
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%0 = icmp sgt i32 %x, 0
|
||||
%saturateLow = select i1 %0, i32 %x, i32 0
|
||||
|
|
@ -122,10 +245,27 @@ entry:
|
|||
|
||||
; k < x ? k : (x > 0 ? x : 0)
|
||||
define i32 @unsigned_sat_upper_lower_3(i32 %x) #0 {
|
||||
; CHECK-LABEL: unsigned_sat_upper_lower_3:
|
||||
; V6: usat r0, #23, r0
|
||||
; V6T2: usat r0, #23, r0
|
||||
; V4T-NOT: usat
|
||||
; V4T-LABEL: unsigned_sat_upper_lower_3:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: bic r1, r0, r0, asr #31
|
||||
; V4T-NEXT: ldr r0, .LCPI7_0
|
||||
; V4T-NEXT: cmp r1, r0
|
||||
; V4T-NEXT: movlt r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI7_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6-LABEL: unsigned_sat_upper_lower_3:
|
||||
; V6: @ %bb.0: @ %entry
|
||||
; V6-NEXT: usat r0, #23, r0
|
||||
; V6-NEXT: bx lr
|
||||
;
|
||||
; V6T2-LABEL: unsigned_sat_upper_lower_3:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: usat r0, #23, r0
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%cmpLow = icmp sgt i32 %x, 0
|
||||
%saturateLow = select i1 %cmpLow, i32 %x, i32 0
|
||||
|
|
@ -141,8 +281,38 @@ entry:
|
|||
; x > k ? k : (x > 0 ? 0 : x)
|
||||
; First condition upper-saturates, second doesn't lower-saturate.
|
||||
define i32 @no_unsigned_sat_missing_lower(i32 %x) #0 {
|
||||
; CHECK-LABEL: no_unsigned_sat_missing_lower
|
||||
; CHECK-NOT: usat
|
||||
; V4T-LABEL: no_unsigned_sat_missing_lower:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: ldr r1, .LCPI8_0
|
||||
; V4T-NEXT: cmp r0, #8388608
|
||||
; V4T-NEXT: andlt r1, r0, r0, asr #31
|
||||
; V4T-NEXT: mov r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI8_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6-LABEL: no_unsigned_sat_missing_lower:
|
||||
; V6: @ %bb.0: @ %entry
|
||||
; V6-NEXT: ldr r1, .LCPI8_0
|
||||
; V6-NEXT: cmp r0, #8388608
|
||||
; V6-NEXT: andlt r1, r0, r0, asr #31
|
||||
; V6-NEXT: mov r0, r1
|
||||
; V6-NEXT: bx lr
|
||||
; V6-NEXT: .p2align 2
|
||||
; V6-NEXT: @ %bb.1:
|
||||
; V6-NEXT: .LCPI8_0:
|
||||
; V6-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6T2-LABEL: no_unsigned_sat_missing_lower:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: and r1, r0, r0, asr #31
|
||||
; V6T2-NEXT: cmp r0, #8388608
|
||||
; V6T2-NEXT: movwge r1, #65535
|
||||
; V6T2-NEXT: movtge r1, #127
|
||||
; V6T2-NEXT: mov r0, r1
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%cmpUp = icmp sgt i32 %x, 8388607
|
||||
%0 = icmp slt i32 %x, 0
|
||||
|
|
@ -154,8 +324,40 @@ entry:
|
|||
; x < k ? k : (x < 0 ? 0 : x)
|
||||
; Second condition lower-saturates, first doesn't upper-saturate.
|
||||
define i32 @no_unsigned_sat_missing_upper(i32 %x) #0 {
|
||||
; CHECK-LABEL: no_unsigned_sat_missing_upper:
|
||||
; CHECK-NOT: usat
|
||||
; V4T-LABEL: no_unsigned_sat_missing_upper:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: ldr r1, .LCPI9_0
|
||||
; V4T-NEXT: cmp r0, r1
|
||||
; V4T-NEXT: bicge r1, r0, r0, asr #31
|
||||
; V4T-NEXT: mov r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI9_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6-LABEL: no_unsigned_sat_missing_upper:
|
||||
; V6: @ %bb.0: @ %entry
|
||||
; V6-NEXT: ldr r1, .LCPI9_0
|
||||
; V6-NEXT: cmp r0, r1
|
||||
; V6-NEXT: bicge r1, r0, r0, asr #31
|
||||
; V6-NEXT: mov r0, r1
|
||||
; V6-NEXT: bx lr
|
||||
; V6-NEXT: .p2align 2
|
||||
; V6-NEXT: @ %bb.1:
|
||||
; V6-NEXT: .LCPI9_0:
|
||||
; V6-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6T2-LABEL: no_unsigned_sat_missing_upper:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: movw r2, #65535
|
||||
; V6T2-NEXT: bic r1, r0, r0, asr #31
|
||||
; V6T2-NEXT: movt r2, #127
|
||||
; V6T2-NEXT: cmp r0, r2
|
||||
; V6T2-NEXT: movwlt r1, #65535
|
||||
; V6T2-NEXT: movtlt r1, #127
|
||||
; V6T2-NEXT: mov r0, r1
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%cmpUp = icmp slt i32 %x, 8388607
|
||||
%0 = icmp sgt i32 %x, 0
|
||||
|
|
@ -166,8 +368,38 @@ entry:
|
|||
|
||||
; Lower constant is different in the select and in the compare
|
||||
define i32 @no_unsigned_sat_incorrect_constant(i32 %x) #0 {
|
||||
; CHECK-LABEL: no_unsigned_sat_incorrect_constant:
|
||||
; CHECK-NOT: usat
|
||||
; V4T-LABEL: no_unsigned_sat_incorrect_constant:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: orr r1, r0, r0, asr #31
|
||||
; V4T-NEXT: ldr r0, .LCPI10_0
|
||||
; V4T-NEXT: cmp r1, r0
|
||||
; V4T-NEXT: movlt r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI10_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6-LABEL: no_unsigned_sat_incorrect_constant:
|
||||
; V6: @ %bb.0: @ %entry
|
||||
; V6-NEXT: orr r1, r0, r0, asr #31
|
||||
; V6-NEXT: ldr r0, .LCPI10_0
|
||||
; V6-NEXT: cmp r1, r0
|
||||
; V6-NEXT: movlt r0, r1
|
||||
; V6-NEXT: bx lr
|
||||
; V6-NEXT: .p2align 2
|
||||
; V6-NEXT: @ %bb.1:
|
||||
; V6-NEXT: .LCPI10_0:
|
||||
; V6-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6T2-LABEL: no_unsigned_sat_incorrect_constant:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: orr r1, r0, r0, asr #31
|
||||
; V6T2-NEXT: movw r0, #65535
|
||||
; V6T2-NEXT: movt r0, #127
|
||||
; V6T2-NEXT: cmp r1, r0
|
||||
; V6T2-NEXT: movlt r0, r1
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%cmpLow.inv = icmp sgt i32 %x, -1
|
||||
%saturateLow = select i1 %cmpLow.inv, i32 %x, i32 -1
|
||||
|
|
@ -178,8 +410,32 @@ entry:
|
|||
|
||||
; The interval is [0, k] but k+1 is not a power of 2
|
||||
define i32 @no_unsigned_sat_incorrect_constant2(i32 %x) #0 {
|
||||
; CHECK-LABEL: no_unsigned_sat_incorrect_constant2:
|
||||
; CHECK-NOT: usat
|
||||
; V4T-LABEL: no_unsigned_sat_incorrect_constant2:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: bic r1, r0, r0, asr #31
|
||||
; V4T-NEXT: mov r0, #1
|
||||
; V4T-NEXT: orr r0, r0, #8388608
|
||||
; V4T-NEXT: cmp r1, #8388608
|
||||
; V4T-NEXT: movle r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
;
|
||||
; V6-LABEL: no_unsigned_sat_incorrect_constant2:
|
||||
; V6: @ %bb.0: @ %entry
|
||||
; V6-NEXT: bic r1, r0, r0, asr #31
|
||||
; V6-NEXT: mov r0, #1
|
||||
; V6-NEXT: orr r0, r0, #8388608
|
||||
; V6-NEXT: cmp r1, #8388608
|
||||
; V6-NEXT: movle r0, r1
|
||||
; V6-NEXT: bx lr
|
||||
;
|
||||
; V6T2-LABEL: no_unsigned_sat_incorrect_constant2:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: bic r1, r0, r0, asr #31
|
||||
; V6T2-NEXT: movw r0, #1
|
||||
; V6T2-NEXT: movt r0, #128
|
||||
; V6T2-NEXT: cmp r1, #8388608
|
||||
; V6T2-NEXT: movle r0, r1
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%0 = icmp sgt i32 %x, 0
|
||||
%saturateLow = select i1 %0, i32 %x, i32 0
|
||||
|
|
@ -190,8 +446,41 @@ entry:
|
|||
|
||||
; The interval is not [0, k]
|
||||
define i32 @no_unsigned_sat_incorrect_interval(i32 %x) #0 {
|
||||
; CHECK-LABEL: no_unsigned_sat_incorrect_interval:
|
||||
; CHECK-NOT: usat
|
||||
; V4T-LABEL: no_unsigned_sat_incorrect_interval:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: ldr r1, .LCPI12_0
|
||||
; V4T-NEXT: cmn r0, #4
|
||||
; V4T-NEXT: mvnle r0, #3
|
||||
; V4T-NEXT: cmp r0, r1
|
||||
; V4T-NEXT: movge r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI12_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6-LABEL: no_unsigned_sat_incorrect_interval:
|
||||
; V6: @ %bb.0: @ %entry
|
||||
; V6-NEXT: ldr r1, .LCPI12_0
|
||||
; V6-NEXT: cmn r0, #4
|
||||
; V6-NEXT: mvnle r0, #3
|
||||
; V6-NEXT: cmp r0, r1
|
||||
; V6-NEXT: movge r0, r1
|
||||
; V6-NEXT: bx lr
|
||||
; V6-NEXT: .p2align 2
|
||||
; V6-NEXT: @ %bb.1:
|
||||
; V6-NEXT: .LCPI12_0:
|
||||
; V6-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6T2-LABEL: no_unsigned_sat_incorrect_interval:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: cmn r0, #4
|
||||
; V6T2-NEXT: movw r1, #65535
|
||||
; V6T2-NEXT: mvnle r0, #3
|
||||
; V6T2-NEXT: movt r1, #127
|
||||
; V6T2-NEXT: cmp r0, r1
|
||||
; V6T2-NEXT: movge r0, r1
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%0 = icmp sgt i32 %x, -4
|
||||
%saturateLow = select i1 %0, i32 %x, i32 -4
|
||||
|
|
@ -202,8 +491,43 @@ entry:
|
|||
|
||||
; The returned value (y) is not the same as the tested value (x).
|
||||
define i32 @no_unsigned_sat_incorrect_return(i32 %x, i32 %y) #0 {
|
||||
; CHECK-LABEL: no_unsigned_sat_incorrect_return:
|
||||
; CHECK-NOT: usat
|
||||
; V4T-LABEL: no_unsigned_sat_incorrect_return:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: cmp r0, #0
|
||||
; V4T-NEXT: ldr r2, .LCPI13_0
|
||||
; V4T-NEXT: movmi r1, #0
|
||||
; V4T-NEXT: cmp r0, #8388608
|
||||
; V4T-NEXT: movlt r2, r1
|
||||
; V4T-NEXT: mov r0, r2
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI13_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6-LABEL: no_unsigned_sat_incorrect_return:
|
||||
; V6: @ %bb.0: @ %entry
|
||||
; V6-NEXT: cmp r0, #0
|
||||
; V6-NEXT: ldr r2, .LCPI13_0
|
||||
; V6-NEXT: movmi r1, #0
|
||||
; V6-NEXT: cmp r0, #8388608
|
||||
; V6-NEXT: movlt r2, r1
|
||||
; V6-NEXT: mov r0, r2
|
||||
; V6-NEXT: bx lr
|
||||
; V6-NEXT: .p2align 2
|
||||
; V6-NEXT: @ %bb.1:
|
||||
; V6-NEXT: .LCPI13_0:
|
||||
; V6-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6T2-LABEL: no_unsigned_sat_incorrect_return:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: cmp r0, #0
|
||||
; V6T2-NEXT: movwmi r1, #0
|
||||
; V6T2-NEXT: cmp r0, #8388608
|
||||
; V6T2-NEXT: movwge r1, #65535
|
||||
; V6T2-NEXT: movtge r1, #127
|
||||
; V6T2-NEXT: mov r0, r1
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%cmpUp = icmp sgt i32 %x, 8388607
|
||||
%cmpLow = icmp slt i32 %x, 0
|
||||
|
|
@ -215,8 +539,46 @@ entry:
|
|||
; One of the values in a compare (y) is not the same as the rest
|
||||
; of the compare and select values (x).
|
||||
define i32 @no_unsigned_sat_incorrect_compare(i32 %x, i32 %y) #0 {
|
||||
; CHECK-LABEL: no_unsigned_sat_incorrect_compare:
|
||||
; CHECK-NOT: usat
|
||||
; V4T-LABEL: no_unsigned_sat_incorrect_compare:
|
||||
; V4T: @ %bb.0: @ %entry
|
||||
; V4T-NEXT: ldr r2, .LCPI14_0
|
||||
; V4T-NEXT: cmp r1, #0
|
||||
; V4T-NEXT: mov r1, r0
|
||||
; V4T-NEXT: movmi r1, #0
|
||||
; V4T-NEXT: cmp r0, #8388608
|
||||
; V4T-NEXT: movge r1, r2
|
||||
; V4T-NEXT: mov r0, r1
|
||||
; V4T-NEXT: bx lr
|
||||
; V4T-NEXT: .p2align 2
|
||||
; V4T-NEXT: @ %bb.1:
|
||||
; V4T-NEXT: .LCPI14_0:
|
||||
; V4T-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6-LABEL: no_unsigned_sat_incorrect_compare:
|
||||
; V6: @ %bb.0: @ %entry
|
||||
; V6-NEXT: ldr r2, .LCPI14_0
|
||||
; V6-NEXT: cmp r1, #0
|
||||
; V6-NEXT: mov r1, r0
|
||||
; V6-NEXT: movmi r1, #0
|
||||
; V6-NEXT: cmp r0, #8388608
|
||||
; V6-NEXT: movge r1, r2
|
||||
; V6-NEXT: mov r0, r1
|
||||
; V6-NEXT: bx lr
|
||||
; V6-NEXT: .p2align 2
|
||||
; V6-NEXT: @ %bb.1:
|
||||
; V6-NEXT: .LCPI14_0:
|
||||
; V6-NEXT: .long 8388607 @ 0x7fffff
|
||||
;
|
||||
; V6T2-LABEL: no_unsigned_sat_incorrect_compare:
|
||||
; V6T2: @ %bb.0: @ %entry
|
||||
; V6T2-NEXT: cmp r1, #0
|
||||
; V6T2-NEXT: mov r1, r0
|
||||
; V6T2-NEXT: movwmi r1, #0
|
||||
; V6T2-NEXT: cmp r0, #8388608
|
||||
; V6T2-NEXT: movwge r1, #65535
|
||||
; V6T2-NEXT: movtge r1, #127
|
||||
; V6T2-NEXT: mov r0, r1
|
||||
; V6T2-NEXT: bx lr
|
||||
entry:
|
||||
%cmpUp = icmp sgt i32 %x, 8388607
|
||||
%cmpLow = icmp slt i32 %y, 0
|
||||
|
|
|
|||
Loading…
Reference in New Issue