# RUN: llc -o - %s -mtriple=x86_64-- -run-pass=x86-avoid-SFB | FileCheck %s --- | ; ModuleID = '../test50419-2.ll' source_filename = "nice.c" target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-unknown-linux-gnu" @.str = private unnamed_addr constant [3 x i8] c"%u\00", align 1 define i32 @test_offset() #0 { entry: %a = alloca [36 x i32], align 16 %z = alloca [36 x i32], align 16 %0 = bitcast [36 x i32]* %z to i8* %scevgep = getelementptr inbounds [36 x i32], [36 x i32]* %a, i64 0, i64 1 %scevgep40 = bitcast i32* %scevgep to i8* %arrayidx.9 = getelementptr inbounds [36 x i32], [36 x i32]* %a, i64 0, i64 9 %1 = load i32, i32* %arrayidx.9, align 4 %add.9 = add i32 %1, 9 store i32 %add.9, i32* %arrayidx.9, align 4 call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 16 %0, i8* nonnull align 4 %scevgep40, i64 136, i1 false) ret i32 %1 } ; Function Attrs: argmemonly nounwind declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture writeonly, i8* nocapture readonly, i64, i1) #1 ; Function Attrs: nounwind declare void @llvm.stackprotector(i8*, i8**) #2 attributes #0 = { "target-cpu"="core-avx2" } attributes #1 = { argmemonly nounwind "target-cpu"="core-avx2" } attributes #2 = { nounwind } ... --- name: test_offset alignment: 16 exposesReturnsTwice: false legalized: false regBankSelected: false selected: false failedISel: false tracksRegLiveness: true registers: - { id: 0, class: gr32, preferred-register: '' } - { id: 1, class: gr32, preferred-register: '' } - { id: 2, class: vr256, preferred-register: '' } - { id: 3, class: vr256, preferred-register: '' } - { id: 4, class: vr256, preferred-register: '' } - { id: 5, class: gr64, preferred-register: '' } - { id: 6, class: vr256, preferred-register: '' } liveins: frameInfo: isFrameAddressTaken: false isReturnAddressTaken: false hasStackMap: false hasPatchPoint: false stackSize: 0 offsetAdjustment: 0 maxAlignment: 16 adjustsStack: false hasCalls: false stackProtector: '' maxCallFrameSize: 4294967295 hasOpaqueSPAdjustment: false hasVAStart: false hasMustTailInVarArgFunc: false localFrameSize: 0 savePoint: '' restorePoint: '' fixedStack: stack: - { id: 0, name: a, type: default, offset: 0, size: 144, alignment: 16, stack-id: default, callee-saved-register: '', callee-saved-restored: true, debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } - { id: 1, name: z, type: default, offset: 0, size: 144, alignment: 16, stack-id: default, callee-saved-register: '', callee-saved-restored: true, debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } constants: body: | bb.0.entry: %0:gr32 = MOV32rm %stack.0.a, 1, $noreg, 36, $noreg :: (dereferenceable load (s32) from %ir.arrayidx.9) %1:gr32 = ADD32ri8 %0, 9, implicit-def dead $eflags MOV32mr %stack.0.a, 1, $noreg, 36, $noreg, killed %1 :: (store (s32) into %ir.arrayidx.9) %2:vr256 = VMOVUPSYrm %stack.0.a, 1, $noreg, 4, $noreg :: (dereferenceable load (s256) from %ir.scevgep40, align 4) VMOVUPSYmr %stack.1.z, 1, $noreg, 0, $noreg, killed %2 :: (store (s256) into %ir.0, align 16) %3:vr256 = VMOVUPSYrm %stack.0.a, 1, $noreg, 68, $noreg :: (dereferenceable load (s256) from %ir.scevgep40 + 64, align 4) VMOVUPSYmr %stack.1.z, 1, $noreg, 64, $noreg, killed %3 :: (store (s256) into %ir.0 + 64, align 16) %4:vr256 = VMOVUPSYrm %stack.0.a, 1, $noreg, 100, $noreg :: (dereferenceable load (s256) from %ir.scevgep40 + 96, align 4) VMOVUPSYmr %stack.1.z, 1, $noreg, 96, $noreg, killed %4 :: (store (s256) into %ir.0 + 96, align 16) %5:gr64 = MOV64rm %stack.0.a, 1, $noreg, 132, $noreg :: (dereferenceable load (s64) from %ir.scevgep40 + 128, align 4) MOV64mr %stack.1.z, 1, $noreg, 128, $noreg, killed %5 :: (store (s64) into %ir.0 + 128, align 16) ; CHECK: gr32 = MOV32rm %stack.0.a, 1, $noreg, 36, $noreg :: (dereferenceable load (s32) from %ir.scevgep40 + 32) ; CHECK-NEXT: MOV32mr %stack.1.z, 1, $noreg, 32, $noreg, killed %7 :: (store (s32) into %ir.0 + 32, align 16) ; CHECK-NEXT: %8:vr128 = VMOVUPSrm %stack.0.a, 1, $noreg, 40, $noreg :: (dereferenceable load (s128) from %ir.scevgep40 + 36, align 4) ; CHECK-NEXT: VMOVUPSmr %stack.1.z, 1, $noreg, 36, $noreg, killed %8 :: (store (s128) into %ir.0 + 36, align 4, basealign 16) ; CHECK-NEXT: %9:gr64 = MOV64rm %stack.0.a, 1, $noreg, 56, $noreg :: (dereferenceable load (s64) from %ir.scevgep40 + 52, align 4) ; CHECK-NEXT: MOV64mr %stack.1.z, 1, $noreg, 52, $noreg, killed %9 :: (store (s64) into %ir.0 + 52, align 4, basealign 16) ; CHECK-NEXT: %10:gr32 = MOV32rm %stack.0.a, 1, $noreg, 64, $noreg :: (dereferenceable load (s32) from %ir.scevgep40 + 60) ; CHECK-NEXT: MOV32mr %stack.1.z, 1, $noreg, 60, $noreg, killed %10 :: (store (s32) into %ir.0 + 60, basealign 16) %6:vr256 = VMOVUPSYrm %stack.0.a, 1, $noreg, 36, $noreg :: (dereferenceable load (s256) from %ir.scevgep40 + 32, align 4) VMOVUPSYmr %stack.1.z, 1, $noreg, 32, $noreg, killed %6 :: (store (s256) into %ir.0 + 32, align 16) $eax = COPY %0 RET 0, $eax ...