xref: /llvm-project/llvm/test/DebugInfo/X86/codegenprepare-rollback.ll (revision 094572701dce4aaf36f4521d6cf750420d39f206)
13ef98bcdSJeremy Morse; RUN: opt -S -debugify -codegenprepare %s -o - | FileCheck %s --check-prefix=DEBUGIFY
23ef98bcdSJeremy Morse; RUN: opt -S -debugify -codegenprepare %s -o - --try-experimental-debuginfo-iterators | FileCheck %s --check-prefix=DEBUGIFY
33ef98bcdSJeremy Morse;
43ef98bcdSJeremy Morse; Copied from codegen-prepare-addrmode-sext.ll -- for the twoArgsNoPromotion
53ef98bcdSJeremy Morse; function, CGP attempts a type promotion transaction on the sext to replace
63ef98bcdSJeremy Morse; it with %add, but then rolls it back. This involves re-inserting the sext
73ef98bcdSJeremy Morse; instruction between two dbg.value intrinsics, and un-RAUWing the users of
83ef98bcdSJeremy Morse; the sext.
93ef98bcdSJeremy Morse; This test checks that this works correctly in both dbg.value mode, but also
103ef98bcdSJeremy Morse; RemoveDIs non-intrinsic debug-info mode.
113ef98bcdSJeremy Morse
123ef98bcdSJeremy Morsetarget datalayout = "e-i64:64-f80:128-s:64-n8:16:32:64-S128"
133ef98bcdSJeremy Morsetarget triple = "x86_64-apple-macosx"
143ef98bcdSJeremy Morse
153ef98bcdSJeremy Morse; DEBUGIFY-LABEL: @twoArgsNoPromotion
163ef98bcdSJeremy Morse; DEBUGIFY-NEXT: %add = add
17*09457270SStephen Tozer; DEBUGIFY-NEXT: #dbg_value(i32 %add,
183ef98bcdSJeremy Morse; DEBUGIFY-NEXT: %sextadd = sext
19*09457270SStephen Tozer; DEBUGIFY-NEXT: #dbg_value(i64 %sextadd,
203ef98bcdSJeremy Morse; DEBUGIFY-NEXT: %arrayidx = getelementptr
21*09457270SStephen Tozer; DEBUGIFY-NEXT: #dbg_value(ptr %arrayidx,
223ef98bcdSJeremy Morse; DEBUGIFY-NEXT: %res = load i8,
23*09457270SStephen Tozer; DEBUGIFY-NEXT: #dbg_value(i8 %res,
243ef98bcdSJeremy Morse; DEBUGIFY-NEXT: ret i8 %res,
253ef98bcdSJeremy Morsedefine i8 @twoArgsNoPromotion(i32 %arg1, i32 %arg2, ptr %base) {
263ef98bcdSJeremy Morse  %add = add nsw i32 %arg1, %arg2
273ef98bcdSJeremy Morse  %sextadd = sext i32 %add to i64
283ef98bcdSJeremy Morse  %arrayidx = getelementptr inbounds i8, ptr %base, i64 %sextadd
293ef98bcdSJeremy Morse  %res = load i8, ptr %arrayidx
303ef98bcdSJeremy Morse  ret i8 %res
313ef98bcdSJeremy Morse}
323ef98bcdSJeremy Morse
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