forked from OSchip/llvm-project
[X86][test] Improve global address offset folding tests
This commit is contained in:
Fangrui Song
parent
18c3e795f7
commit
bf286b00e9
|
|
@ -1,41 +0,0 @@
|
||||||
; RUN: llc -mtriple=x86_64 -relocation-model=static < %s | FileCheck --check-prefixes=CHECK,STATIC %s
|
|
||||||
; RUN: llc -mtriple=x86_64 -relocation-model=pic < %s | FileCheck --check-prefixes=CHECK,PIC %s
|
|
||||||
; RUN: llc -mtriple=x86_64 -code-model=medium -relocation-model=static < %s | FileCheck --check-prefixes=CHECK,MSTATIC %s
|
|
||||||
; RUN: llc -mtriple=x86_64 -code-model=medium -relocation-model=pic < %s | FileCheck --check-prefixes=CHECK,MPIC %s
|
|
||||||
|
|
||||||
@foo = internal global i32 0
|
|
||||||
|
|
||||||
define dso_local i64 @zero() {
|
|
||||||
; CHECK-LABEL: zero:
|
|
||||||
; CHECK: # %bb.0:
|
|
||||||
; STATIC-NEXT: movl $foo, %eax
|
|
||||||
; STATIC-NEXT: retq
|
|
||||||
; PIC-NEXT: leaq foo(%rip), %rax
|
|
||||||
; PIC-NEXT: retq
|
|
||||||
; MSTATIC-NEXT: movabsq $foo, %rax
|
|
||||||
; MSTATIC-NEXT: retq
|
|
||||||
; MPIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rcx
|
|
||||||
; MPIC-NEXT: movabsq $foo@GOTOFF, %rax
|
|
||||||
; MPIC-NEXT: addq %rcx, %rax
|
|
||||||
entry:
|
|
||||||
ret i64 add (i64 ptrtoint (i32* @foo to i64), i64 0)
|
|
||||||
}
|
|
||||||
|
|
||||||
;; Check we don't fold a large offset into leaq, otherwise
|
|
||||||
;; the large r_addend can easily cause a relocation overflow.
|
|
||||||
define dso_local i64 @large() {
|
|
||||||
; CHECK-LABEL: large:
|
|
||||||
; CHECK: # %bb.0:
|
|
||||||
; STATIC-NEXT: movl $1701208431, %eax
|
|
||||||
; STATIC-NEXT: leaq foo(%rax), %rax
|
|
||||||
; PIC-NEXT: leaq foo(%rip), %rax
|
|
||||||
; PIC-NEXT: addq $1701208431, %rax
|
|
||||||
; MSTATIC-NEXT: movabsq $foo, %rax
|
|
||||||
; MSTATIC-NEXT: addq $1701208431, %rax
|
|
||||||
; MSTATIC-NEXT: retq
|
|
||||||
; MPIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rax
|
|
||||||
; MPIC-NEXT: movabsq $foo@GOTOFF, %rcx
|
|
||||||
; MPIC-NEXT: leaq 1701208431(%rax,%rcx), %rax
|
|
||||||
entry:
|
|
||||||
ret i64 add (i64 ptrtoint (i32* @foo to i64), i64 1701208431)
|
|
||||||
}
|
|
||||||
|
|
@ -1,30 +1,105 @@
|
||||||
; RUN: llc < %s | FileCheck %s
|
; RUN: llc -mtriple=x86_64 -relocation-model=static < %s | FileCheck --check-prefixes=CHECK,STATIC %s
|
||||||
|
; RUN: llc -mtriple=x86_64 -relocation-model=pic < %s | FileCheck --check-prefixes=CHECK,PIC %s
|
||||||
|
; RUN: llc -mtriple=x86_64 -code-model=medium -relocation-model=static < %s | FileCheck --check-prefixes=CHECK,MSTATIC %s
|
||||||
|
; RUN: llc -mtriple=x86_64 -code-model=medium -relocation-model=pic < %s | FileCheck --check-prefixes=CHECK,MPIC %s
|
||||||
|
|
||||||
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
|
@foo = internal global i32 0
|
||||||
target triple = "x86_64-apple-darwin9.6"
|
|
||||||
@prev_length = internal global i32 0 ; <i32*> [#uses=1]
|
|
||||||
@window = internal global [65536 x i8] zeroinitializer, align 32 ; <[65536 x i8]*> [#uses=1]
|
|
||||||
@llvm.used = appending global [1 x i8*] [i8* bitcast (i32 (i32)* @longest_match to i8*)] ; <[1 x i8*]*> [#uses=0]
|
|
||||||
|
|
||||||
define fastcc i32 @longest_match(i32 %cur_match) nounwind {
|
|
||||||
; CHECK-LABEL: longest_match:
|
|
||||||
; CHECK-NOT: ret
|
|
||||||
; CHECK: cmpb $0, (%r{{.*}},%r{{.*}})
|
|
||||||
; CHECK: ret
|
|
||||||
|
|
||||||
|
define dso_local i64 @zero() #0 {
|
||||||
|
; CHECK-LABEL: zero:
|
||||||
|
; CHECK: # %bb.0:
|
||||||
|
; STATIC-NEXT: movl $foo, %eax
|
||||||
|
; STATIC-NEXT: retq
|
||||||
|
; PIC-NEXT: leaq foo(%rip), %rax
|
||||||
|
; PIC-NEXT: retq
|
||||||
|
; MSTATIC-NEXT: movabsq $foo, %rax
|
||||||
|
; MSTATIC-NEXT: retq
|
||||||
|
; MPIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rcx
|
||||||
|
; MPIC-NEXT: movabsq $foo@GOTOFF, %rax
|
||||||
|
; MPIC-NEXT: addq %rcx, %rax
|
||||||
entry:
|
entry:
|
||||||
%0 = load i32, i32* @prev_length, align 4 ; <i32> [#uses=3]
|
ret i64 add (i64 ptrtoint (i32* @foo to i64), i64 0)
|
||||||
%1 = zext i32 %cur_match to i64 ; <i64> [#uses=1]
|
|
||||||
%2 = sext i32 %0 to i64 ; <i64> [#uses=1]
|
|
||||||
%.sum3 = add i64 %1, %2 ; <i64> [#uses=1]
|
|
||||||
%3 = getelementptr [65536 x i8], [65536 x i8]* @window, i64 0, i64 %.sum3 ; <i8*> [#uses=1]
|
|
||||||
%4 = load i8, i8* %3, align 1 ; <i8> [#uses=1]
|
|
||||||
%5 = icmp eq i8 %4, 0 ; <i1> [#uses=1]
|
|
||||||
br i1 %5, label %bb5, label %bb23
|
|
||||||
|
|
||||||
bb5: ; preds = %entry
|
|
||||||
ret i32 %0
|
|
||||||
|
|
||||||
bb23: ; preds = %entry
|
|
||||||
ret i32 %0
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
define dso_local i64 @one() #0 {
|
||||||
|
; CHECK-LABEL: one:
|
||||||
|
; CHECK: # %bb.0:
|
||||||
|
; STATIC-NEXT: movl $foo+1, %eax
|
||||||
|
; PIC-NEXT: leaq foo+1(%rip), %rax
|
||||||
|
; MSTATIC-NEXT: movabsq $foo, %rax
|
||||||
|
; MSTATIC-NEXT: incq %rax
|
||||||
|
; MPIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rax
|
||||||
|
; MPIC-NEXT: movabsq $foo@GOTOFF, %rcx
|
||||||
|
; MPIC-NEXT: leaq 1(%rax,%rcx), %rax
|
||||||
|
entry:
|
||||||
|
ret i64 add (i64 ptrtoint (i32* @foo to i64), i64 1)
|
||||||
|
}
|
||||||
|
|
||||||
|
;; Check we don't fold a large offset into leaq, otherwise
|
||||||
|
;; the large r_addend can easily cause a relocation overflow.
|
||||||
|
define dso_local i64 @large() #0 {
|
||||||
|
; CHECK-LABEL: large:
|
||||||
|
; CHECK: # %bb.0:
|
||||||
|
; STATIC-NEXT: movl $1701208431, %eax
|
||||||
|
; STATIC-NEXT: leaq foo(%rax), %rax
|
||||||
|
; PIC-NEXT: leaq foo(%rip), %rax
|
||||||
|
; PIC-NEXT: addq $1701208431, %rax
|
||||||
|
; MSTATIC-NEXT: movabsq $foo, %rax
|
||||||
|
; MSTATIC-NEXT: addq $1701208431, %rax
|
||||||
|
; MSTATIC-NEXT: retq
|
||||||
|
; MPIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rax
|
||||||
|
; MPIC-NEXT: movabsq $foo@GOTOFF, %rcx
|
||||||
|
; MPIC-NEXT: leaq 1701208431(%rax,%rcx), %rax
|
||||||
|
entry:
|
||||||
|
ret i64 add (i64 ptrtoint (i32* @foo to i64), i64 1701208431)
|
||||||
|
}
|
||||||
|
|
||||||
|
define dso_local i64 @neg_1() #0 {
|
||||||
|
; CHECK-LABEL: neg_1:
|
||||||
|
; CHECK: # %bb.0:
|
||||||
|
; STATIC-NEXT: movl $foo-1, %eax
|
||||||
|
; PIC-NEXT: leaq foo-1(%rip), %rax
|
||||||
|
; MSTATIC-NEXT: movabsq $foo, %rax
|
||||||
|
; MSTATIC-NEXT: decq %rax
|
||||||
|
; MPIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rax
|
||||||
|
; MPIC-NEXT: movabsq $foo@GOTOFF, %rcx
|
||||||
|
; MPIC-NEXT: leaq -1(%rax,%rcx), %rax
|
||||||
|
entry:
|
||||||
|
ret i64 add (i64 ptrtoint (i32* @foo to i64), i64 -1)
|
||||||
|
}
|
||||||
|
|
||||||
|
define dso_local i64 @neg_0x80000000() #0 {
|
||||||
|
; CHECK-LABEL: neg_0x80000000:
|
||||||
|
; CHECK: # %bb.0:
|
||||||
|
; STATIC-NEXT: movl $foo-2147483648, %eax
|
||||||
|
; PIC-NEXT: leaq foo-2147483648(%rip), %rax
|
||||||
|
; MSTATIC-NEXT: movabsq $foo, %rax
|
||||||
|
; MSTATIC-NEXT: addq $-2147483648, %rax
|
||||||
|
; MPIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rax
|
||||||
|
; MPIC-NEXT: movabsq $foo@GOTOFF, %rcx
|
||||||
|
; MPIC-NEXT: leaq -2147483648(%rax,%rcx), %rax
|
||||||
|
entry:
|
||||||
|
ret i64 add (i64 ptrtoint (i32* @foo to i64), i64 -2147483648)
|
||||||
|
}
|
||||||
|
|
||||||
|
define dso_local i64 @neg_0x80000001() #0 {
|
||||||
|
; CHECK-LABEL: neg_0x80000001:
|
||||||
|
; CHECK: # %bb.0:
|
||||||
|
; STATIC-NEXT: movabsq $-2147483649, %rax
|
||||||
|
; STATIC-NEXT: leaq foo(%rax), %rax
|
||||||
|
; PIC-NEXT: leaq foo(%rip), %rcx
|
||||||
|
; PIC-NEXT: movabsq $-2147483649, %rax
|
||||||
|
; PIC-NEXT: addq %rcx, %rax
|
||||||
|
; MSTATIC-NEXT: movabsq $-2147483649, %rcx
|
||||||
|
; MSTATIC-NEXT: movabsq $foo, %rax
|
||||||
|
; MSTATIC-NEXT: addq %rcx, %rax
|
||||||
|
; MPIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rax
|
||||||
|
; MPIC-NEXT: movabsq $foo@GOTOFF, %rcx
|
||||||
|
; MPIC-NEXT: addq %rax, %rcx
|
||||||
|
; MPIC-NEXT: movabsq $-2147483649, %rax
|
||||||
|
; MPIC-NEXT: addq %rcx, %rax
|
||||||
|
entry:
|
||||||
|
ret i64 add (i64 ptrtoint (i32* @foo to i64), i64 -2147483649)
|
||||||
|
}
|
||||||
|
|
||||||
|
attributes #0 = { nounwind }
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue