forked from OSchip/llvm-project
64 lines
1.4 KiB
LLVM
64 lines
1.4 KiB
LLVM
|
; Test three-operand shifts.
|
||
|
|
;
|
||
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s
|
||
|
|
|
||
|
|
; Check that we use SLLK over SLL where useful.
|
||
|
|
define i32 @f1(i32 %a, i32 %b, i32 %amt) {
|
||
|
|
; CHECK-LABEL: f1:
|
||
|
|
; CHECK: sllk %r2, %r3, 15(%r4)
|
||
|
|
; CHECK: br %r14
|
||
|
|
%add = add i32 %amt, 15
|
||
|
|
%shift = shl i32 %b, %add
|
||
|
|
ret i32 %shift
|
||
|
|
}
|
||
|
|
|
||
|
|
; Check that we use SLL over SLLK where possible.
|
||
|
|
define i32 @f2(i32 %a, i32 %amt) {
|
||
|
|
; CHECK-LABEL: f2:
|
||
|
|
; CHECK: sll %r2, 15(%r3)
|
||
|
|
; CHECK: br %r14
|
||
|
|
%add = add i32 %amt, 15
|
||
|
|
%shift = shl i32 %a, %add
|
||
|
|
ret i32 %shift
|
||
|
|
}
|
||
|
|
|
||
|
|
; Check that we use SRLK over SRL where useful.
|
||
|
|
define i32 @f3(i32 %a, i32 %b, i32 %amt) {
|
||
|
|
; CHECK-LABEL: f3:
|
||
|
|
; CHECK: srlk %r2, %r3, 15(%r4)
|
||
|
|
; CHECK: br %r14
|
||
|
|
%add = add i32 %amt, 15
|
||
|
|
%shift = lshr i32 %b, %add
|
||
|
|
ret i32 %shift
|
||
|
|
}
|
||
|
|
|
||
|
|
; Check that we use SRL over SRLK where possible.
|
||
|
|
define i32 @f4(i32 %a, i32 %amt) {
|
||
|
|
; CHECK-LABEL: f4:
|
||
|
|
; CHECK: srl %r2, 15(%r3)
|
||
|
|
; CHECK: br %r14
|
||
|
|
%add = add i32 %amt, 15
|
||
|
|
%shift = lshr i32 %a, %add
|
||
|
|
ret i32 %shift
|
||
|
|
}
|
||
|
|
|
||
|
|
; Check that we use SRAK over SRA where useful.
|
||
|
|
define i32 @f5(i32 %a, i32 %b, i32 %amt) {
|
||
|
|
; CHECK-LABEL: f5:
|
||
|
|
; CHECK: srak %r2, %r3, 15(%r4)
|
||
|
|
; CHECK: br %r14
|
||
|
|
%add = add i32 %amt, 15
|
||
|
|
%shift = ashr i32 %b, %add
|
||
|
|
ret i32 %shift
|
||
|
|
}
|
||
|
|
|
||
|
|
; Check that we use SRA over SRAK where possible.
|
||
|
|
define i32 @f6(i32 %a, i32 %amt) {
|
||
|
|
; CHECK-LABEL: f6:
|
||
|
|
; CHECK: sra %r2, 15(%r3)
|
||
|
|
; CHECK: br %r14
|
||
|
|
%add = add i32 %amt, 15
|
||
|
|
%shift = ashr i32 %a, %add
|
||
|
|
ret i32 %shift
|
||
|
|
}
|