From d2574d79b64db47051f0ea19de184218302e322a Mon Sep 17 00:00:00 2001 From: Petar Avramovic Date: Thu, 5 Sep 2019 11:12:01 +0000 Subject: [MIPS GlobalISel] Lower SRet pointer arguments Instead of returning structure by value clang usually adds pointer to that structure as an argument. Pointers don't require special handling no matter the SRet flag. Remove unsuccessful exit from lowerCall for arguments with SRet flag if they are pointers. Differential Revision: https://reviews.llvm.org/D67179 llvm-svn: 371054 --- .../Mips/GlobalISel/irtranslator/sret_pointer.ll | 39 ++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 llvm/test/CodeGen/Mips/GlobalISel/irtranslator/sret_pointer.ll (limited to 'llvm/test/CodeGen/Mips/GlobalISel/irtranslator/sret_pointer.ll') diff --git a/llvm/test/CodeGen/Mips/GlobalISel/irtranslator/sret_pointer.ll b/llvm/test/CodeGen/Mips/GlobalISel/irtranslator/sret_pointer.ll new file mode 100644 index 00000000000..aab38d7042e --- /dev/null +++ b/llvm/test/CodeGen/Mips/GlobalISel/irtranslator/sret_pointer.ll @@ -0,0 +1,39 @@ +; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py +; RUN: llc -O0 -mtriple=mipsel-linux-gnu -global-isel -stop-after=irtranslator -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=MIPS32 + +%struct.S = type { i32, i32 } + +define void @ZeroInit(%struct.S* noalias sret %agg.result) { + ; MIPS32-LABEL: name: ZeroInit + ; MIPS32: bb.1.entry: + ; MIPS32: liveins: $a0 + ; MIPS32: [[COPY:%[0-9]+]]:_(p0) = COPY $a0 + ; MIPS32: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0 + ; MIPS32: [[COPY1:%[0-9]+]]:_(p0) = COPY [[COPY]](p0) + ; MIPS32: G_STORE [[C]](s32), [[COPY1]](p0) :: (store 4 into %ir.x) + ; MIPS32: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 4 + ; MIPS32: [[GEP:%[0-9]+]]:_(p0) = G_GEP [[COPY]], [[C1]](s32) + ; MIPS32: G_STORE [[C]](s32), [[GEP]](p0) :: (store 4 into %ir.y) + ; MIPS32: RetRA +entry: + %x = getelementptr inbounds %struct.S, %struct.S* %agg.result, i32 0, i32 0 + store i32 0, i32* %x, align 4 + %y = getelementptr inbounds %struct.S, %struct.S* %agg.result, i32 0, i32 1 + store i32 0, i32* %y, align 4 + ret void +} + +define void @CallZeroInit(%struct.S* noalias sret %agg.result) { + ; MIPS32-LABEL: name: CallZeroInit + ; MIPS32: bb.1.entry: + ; MIPS32: liveins: $a0 + ; MIPS32: [[COPY:%[0-9]+]]:_(p0) = COPY $a0 + ; MIPS32: ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp + ; MIPS32: $a0 = COPY [[COPY]](p0) + ; MIPS32: JAL @ZeroInit, csr_o32, implicit-def $ra, implicit-def $sp, implicit $a0 + ; MIPS32: ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp + ; MIPS32: RetRA +entry: + call void @ZeroInit(%struct.S* sret %agg.result) + ret void +} -- cgit v1.2.3