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[NFC] Fix test for zext(shl(trunc)) fold #113778

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merged 1 commit into from
Nov 5, 2024
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[NFC] Fix test for zext(shl(trunc)) fold #113778

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12 changes: 6 additions & 6 deletions llvm/test/Transforms/InstCombine/trunc-shl-zext.ll
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Original file line number Diff line number Diff line change
@@ -1,12 +1,13 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
; RUN: opt < %s -passes=instcombine -S | FileCheck %s

target datalayout = "n8:16:32:64"

define i32 @trunc_shl_zext_32(i32 %a) {
; CHECK-LABEL: define i32 @trunc_shl_zext_32
; CHECK-SAME: (i32 [[A:%.*]]) {
; CHECK-NEXT: [[TRUNC:%.*]] = trunc i32 [[A]] to i16
; CHECK-NEXT: [[SHL:%.*]] = shl i16 [[TRUNC]], 4
; CHECK-NEXT: [[EXT:%.*]] = zext i16 [[SHL]] to i32
; CHECK-NEXT: [[SHL:%.*]] = shl i32 [[A]], 4
; CHECK-NEXT: [[EXT:%.*]] = and i32 [[SHL]], 65520
; CHECK-NEXT: ret i32 [[EXT]]
;
%trunc = trunc i32 %a to i16
Expand All @@ -18,9 +19,8 @@ define i32 @trunc_shl_zext_32(i32 %a) {
define i64 @trunc_shl_zext_64(i64 %a) {
; CHECK-LABEL: define i64 @trunc_shl_zext_64
; CHECK-SAME: (i64 [[A:%.*]]) {
; CHECK-NEXT: [[TRUNC:%.*]] = trunc i64 [[A]] to i8
; CHECK-NEXT: [[SHL:%.*]] = shl i8 [[TRUNC]], 7
; CHECK-NEXT: [[EXT:%.*]] = zext i8 [[SHL]] to i64
; CHECK-NEXT: [[SHL:%.*]] = shl i64 [[A]], 7
; CHECK-NEXT: [[EXT:%.*]] = and i64 [[SHL]], 128
; CHECK-NEXT: ret i64 [[EXT]]
;
%trunc = trunc i64 %a to i8
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