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[PowerPC] Use real pointers instead of undef

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The reduced test removed the pointer arguments, but to better survive D58017 and D58070 we need them back.

llvm-svn: 355532
This commit is contained in:
Simon Pilgrim 2019-03-06 18:49:39 +00:00
parent 4018037d9b
commit 04ab7d8c4f
1 changed files with 17 additions and 13 deletions
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30
test/CodeGen/PowerPC/pr39478.ll
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@ -1,25 +1,29 @@
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=powerpc64le-unknown-unknown -verify-machineinstrs < %s | \
; RUN: FileCheck %s
; RUN: llc -mtriple=powerpc64-unknown-unknown -verify-machineinstrs < %s | \
; RUN: FileCheck %s
; RUN: llc < %s -mtriple=powerpc64le-unknown-unknown -verify-machineinstrs | FileCheck %s --check-prefix=CHECKLE
; RUN: llc < %s -mtriple=powerpc64-unknown-unknown -verify-machineinstrs | FileCheck %s --check-prefix=CHECKBE
define void @pr39478() {
; CHECK-LABEL: pr39478:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: lwz 3, 0(3)
; CHECK-NEXT: stb 3, 0(3)
; CHECK-NEXT: blr
define void @pr39478(i64* %p64, i32* %p32) {
; CHECKLE-LABEL: pr39478:
; CHECKLE: # %bb.0: # %entry
; CHECKLE-NEXT: lwz 3, 4(3)
; CHECKLE-NEXT: stb 3, 0(4)
; CHECKLE-NEXT: blr
;
; CHECKBE-LABEL: pr39478:
; CHECKBE: # %bb.0: # %entry
; CHECKBE-NEXT: lwz 3, 0(3)
; CHECKBE-NEXT: stb 3, 3(4)
; CHECKBE-NEXT: blr
entry:
%tmp32 = load i64, i64* undef, align 8
%tmp33 = load i32, i32* undef, align 4
%tmp32 = load i64, i64* %p64, align 8
%tmp33 = load i32, i32* %p32, align 4
%tmp34 = and i32 %tmp33, -256
%tmp35 = lshr i64 %tmp32, 32
%tmp36 = shl nuw nsw i64 %tmp35, 24
%tmp37 = trunc i64 %tmp36 to i32
%tmp38 = call i32 @llvm.bswap.i32(i32 %tmp37)
%tmp39 = or i32 %tmp38, %tmp34
store i32 %tmp39, i32* undef, align 4
store i32 %tmp39, i32* %p32, align 4
ret void
}