[llvm] r362834 - [GlobalISel] IRTranslator: Translate the intrinsics ignored by CodeGen
Volkan Keles via llvm-commits
llvm-commits at lists.llvm.org
Fri Jun 7 13:19:28 PDT 2019
Author: volkan
Date: Fri Jun 7 13:19:27 2019
New Revision: 362834
URL: http://llvm.org/viewvc/llvm-project?rev=362834&view=rev
Log:
[GlobalISel] IRTranslator: Translate the intrinsics ignored by CodeGen
Summary:
Translate `llvm.assume`, `llvm.var.annotation` and `llvm.sideeffect` to nothing
as they have no effect on CodeGen.
Reviewers: qcolombet, aditya_nandakumar, dsanders, paquette, aemerson, arsenm
Reviewed By: arsenm
Subscribers: hiraditya, wdng, rovka, kristof.beyls, javed.absar, Petar.Avramovic, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D63022
Modified:
llvm/trunk/lib/CodeGen/GlobalISel/IRTranslator.cpp
llvm/trunk/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
Modified: llvm/trunk/lib/CodeGen/GlobalISel/IRTranslator.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/GlobalISel/IRTranslator.cpp?rev=362834&r1=362833&r2=362834&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/GlobalISel/IRTranslator.cpp (original)
+++ llvm/trunk/lib/CodeGen/GlobalISel/IRTranslator.cpp Fri Jun 7 13:19:27 2019
@@ -1108,6 +1108,11 @@ bool IRTranslator::translateKnownIntrins
}
case Intrinsic::invariant_end:
return true;
+ case Intrinsic::assume:
+ case Intrinsic::var_annotation:
+ case Intrinsic::sideeffect:
+ // Discard annotate attributes, assumptions, and artificial side-effects.
+ return true;
}
return false;
}
Modified: llvm/trunk/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll?rev=362834&r1=362833&r2=362834&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll (original)
+++ llvm/trunk/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll Fri Jun 7 13:19:27 2019
@@ -2390,3 +2390,30 @@ define float @test_rint_f32(float %x) {
%y = call float @llvm.rint.f32(float %x)
ret float %y
}
+
+declare void @llvm.assume(i1)
+define void @test_assume(i1 %x) {
+ ; CHECK-LABEL: name: test_assume
+ ; CHECK-NOT: llvm.assume
+ ; CHECK: RET_ReallyLR
+ call void @llvm.assume(i1 %x)
+ ret void
+}
+
+declare void @llvm.sideeffect()
+define void @test_sideeffect() {
+ ; CHECK-LABEL: name: test_sideeffect
+ ; CHECK-NOT: llvm.sideeffect
+ ; CHECK: RET_ReallyLR
+ call void @llvm.sideeffect()
+ ret void
+}
+
+declare void @llvm.var.annotation(i8*, i8*, i8*, i32)
+define void @test_var_annotation(i8*, i8*, i8*, i32) {
+ ; CHECK-LABEL: name: test_var_annotation
+ ; CHECK-NOT: llvm.var.annotation
+ ; CHECK: RET_ReallyLR
+ call void @llvm.var.annotation(i8* %0, i8* %1, i8* %2, i32 %3)
+ ret void
+}
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