fold-rlwinm-1.ll
1.37 KB
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -verify-machineinstrs -ppc-asm-full-reg-names < %s \
; RUN: -mtriple=powerpc64le-unknown-linux-gnu | FileCheck %s
@res = dso_local local_unnamed_addr global i32 0, align 4
@res2 = dso_local local_unnamed_addr global i32 0, align 4
define void @foo(i32 signext %var1) {
; CHECK-LABEL: foo:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: xori r3, r3, 1
; CHECK-NEXT: addis r4, r2, res@toc@ha
; CHECK-NEXT: cntlzw r3, r3
; CHECK-NEXT: rlwinm r3, r3, 14, 0, 12
; CHECK-NEXT: stw r3, res@toc@l(r4)
; CHECK-NEXT: blr
entry:
%cmp = icmp eq i32 %var1, 1
%conv = zext i1 %cmp to i32
%shl = shl nuw nsw i32 %conv, 19
store i32 %shl, i32* @res, align 4
ret void
}
define void @foo_multiple_use(i32 signext %var1) {
; CHECK-LABEL: foo_multiple_use:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: xori r3, r3, 1
; CHECK-NEXT: addis r4, r2, res2@toc@ha
; CHECK-NEXT: addis r6, r2, res@toc@ha
; CHECK-NEXT: cntlzw r3, r3
; CHECK-NEXT: srwi r5, r3, 5
; CHECK-NEXT: rlwinm r3, r3, 14, 0, 12
; CHECK-NEXT: stw r5, res2@toc@l(r4)
; CHECK-NEXT: stw r3, res@toc@l(r6)
; CHECK-NEXT: blr
entry:
%cmp = icmp eq i32 %var1, 1
%conv = zext i1 %cmp to i32
store i32 %conv, i32* @res2, align 4
%shl = shl nuw nsw i32 %conv, 19
store i32 %shl, i32* @res, align 4
ret void
}