212 lines
7.8 KiB
LLVM
212 lines
7.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 3
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; RUN: opt < %s -passes=inline -S | FileCheck %s
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; RUN: opt < %s -passes='cgscc(inline)' -S | FileCheck %s
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; The verifier does catch problems with inlining of byval arguments that has a
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; different address space compared to the alloca. But running instcombine
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; after inline used to trigger asserts unless we disallow such inlining.
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; RUN: opt < %s -passes=inline,instcombine -disable-output 2>/dev/null
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target datalayout = "p:32:32-p1:64:64-p2:16:16-n16:32:64"
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; Inlining a byval struct should cause an explicit copy into an alloca.
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%struct.ss = type { i32, i64 }
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@.str = internal constant [10 x i8] c"%d, %lld\0A\00" ; <ptr> [#uses=1]
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define internal void @f(ptr byval(%struct.ss) %b) nounwind {
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entry:
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%tmp = getelementptr %struct.ss, ptr %b, i32 0, i32 0 ; <ptr> [#uses=2]
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%tmp1 = load i32, ptr %tmp, align 4 ; <i32> [#uses=1]
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%tmp2 = add i32 %tmp1, 1 ; <i32> [#uses=1]
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store i32 %tmp2, ptr %tmp, align 4
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ret void
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}
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declare i32 @printf(ptr, ...) nounwind
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define i32 @test1() nounwind {
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; CHECK-LABEL: define i32 @test1(
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; CHECK-SAME: ) #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[S1:%.*]] = alloca [[STRUCT_SS:%.*]], align 8
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; CHECK-NEXT: [[S:%.*]] = alloca [[STRUCT_SS]], align 8
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; CHECK-NEXT: [[TMP1:%.*]] = getelementptr [[STRUCT_SS]], ptr [[S]], i32 0, i32 0
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; CHECK-NEXT: store i32 1, ptr [[TMP1]], align 8
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; CHECK-NEXT: [[TMP4:%.*]] = getelementptr [[STRUCT_SS]], ptr [[S]], i32 0, i32 1
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; CHECK-NEXT: store i64 2, ptr [[TMP4]], align 4
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 12, ptr [[S1]])
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 1 [[S1]], ptr align 1 [[S]], i64 12, i1 false)
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; CHECK-NEXT: [[TMP1_I:%.*]] = load i32, ptr [[S1]], align 4
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; CHECK-NEXT: [[TMP2_I:%.*]] = add i32 [[TMP1_I]], 1
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; CHECK-NEXT: store i32 [[TMP2_I]], ptr [[S1]], align 4
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 12, ptr [[S1]])
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; CHECK-NEXT: ret i32 0
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;
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entry:
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%S = alloca %struct.ss ; <ptr> [#uses=4]
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%tmp1 = getelementptr %struct.ss, ptr %S, i32 0, i32 0 ; <ptr> [#uses=1]
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store i32 1, ptr %tmp1, align 8
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%tmp4 = getelementptr %struct.ss, ptr %S, i32 0, i32 1 ; <ptr> [#uses=1]
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store i64 2, ptr %tmp4, align 4
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call void @f(ptr byval(%struct.ss) %S) nounwind
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ret i32 0
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}
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; Inlining a byval struct should NOT cause an explicit copy
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; into an alloca if the function is readonly
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define internal i32 @f2(ptr byval(%struct.ss) %b) nounwind readonly {
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entry:
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%tmp = getelementptr %struct.ss, ptr %b, i32 0, i32 0 ; <ptr> [#uses=2]
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%tmp1 = load i32, ptr %tmp, align 4 ; <i32> [#uses=1]
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%tmp2 = add i32 %tmp1, 1 ; <i32> [#uses=1]
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ret i32 %tmp2
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}
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define i32 @test2() nounwind {
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; CHECK-LABEL: define i32 @test2(
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; CHECK-SAME: ) #[[ATTR0]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[S:%.*]] = alloca [[STRUCT_SS:%.*]], align 8
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; CHECK-NEXT: [[TMP1:%.*]] = getelementptr [[STRUCT_SS]], ptr [[S]], i32 0, i32 0
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; CHECK-NEXT: store i32 1, ptr [[TMP1]], align 8
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; CHECK-NEXT: [[TMP4:%.*]] = getelementptr [[STRUCT_SS]], ptr [[S]], i32 0, i32 1
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; CHECK-NEXT: store i64 2, ptr [[TMP4]], align 4
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; CHECK-NEXT: [[TMP1_I:%.*]] = load i32, ptr [[S]], align 4
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; CHECK-NEXT: [[TMP2_I:%.*]] = add i32 [[TMP1_I]], 1
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; CHECK-NEXT: ret i32 [[TMP2_I]]
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;
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entry:
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%S = alloca %struct.ss ; <ptr> [#uses=4]
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%tmp1 = getelementptr %struct.ss, ptr %S, i32 0, i32 0 ; <ptr> [#uses=1]
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store i32 1, ptr %tmp1, align 8
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%tmp4 = getelementptr %struct.ss, ptr %S, i32 0, i32 1 ; <ptr> [#uses=1]
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store i64 2, ptr %tmp4, align 4
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%X = call i32 @f2(ptr byval(%struct.ss) %S) nounwind
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ret i32 %X
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}
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; Inlining a byval with an explicit alignment needs to use *at least* that
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; alignment on the generated alloca.
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; PR8769
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declare void @g3(ptr %p)
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define internal void @f3(ptr byval(%struct.ss) align 64 %b) nounwind {
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call void @g3(ptr %b) ;; Could make alignment assumptions!
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ret void
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}
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define void @test3() nounwind {
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; CHECK-LABEL: define void @test3(
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; CHECK-SAME: ) #[[ATTR0]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[S1:%.*]] = alloca [[STRUCT_SS:%.*]], align 64
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; CHECK-NEXT: [[S:%.*]] = alloca [[STRUCT_SS]], align 1
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 12, ptr [[S1]])
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 1 [[S1]], ptr align 1 [[S]], i64 12, i1 false)
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; CHECK-NEXT: call void @g3(ptr [[S1]]) #[[ATTR0]]
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 12, ptr [[S1]])
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; CHECK-NEXT: ret void
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;
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entry:
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%S = alloca %struct.ss, align 1 ;; May not be aligned.
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call void @f3(ptr byval(%struct.ss) align 64 %S) nounwind
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ret void
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}
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; Inlining a byval struct should NOT cause an explicit copy
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; into an alloca if the function is readonly, but should increase an alloca's
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; alignment to satisfy an explicit alignment request.
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define internal i32 @f4(ptr byval(%struct.ss) align 64 %b) nounwind readonly {
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call void @g3(ptr %b)
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ret i32 4
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}
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define i32 @test4() nounwind {
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; CHECK-LABEL: define i32 @test4(
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; CHECK-SAME: ) #[[ATTR0]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[S:%.*]] = alloca [[STRUCT_SS:%.*]], align 64
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; CHECK-NEXT: call void @g3(ptr [[S]]) #[[ATTR0]]
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; CHECK-NEXT: ret i32 4
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;
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entry:
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%S = alloca %struct.ss, align 2 ; <ptr> [#uses=4]
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%X = call i32 @f4(ptr byval(%struct.ss) align 64 %S) nounwind
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ret i32 %X
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}
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%struct.S0 = type { i32 }
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@b = global %struct.S0 { i32 1 }, align 4
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@a = common global i32 0, align 4
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define internal void @f5(ptr byval(%struct.S0) nocapture readonly align 4 %p) {
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entry:
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store i32 0, ptr @b, align 4
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%0 = load i32, ptr %p, align 4
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store i32 %0, ptr @a, align 4
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ret void
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}
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define i32 @test5() {
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; CHECK-LABEL: define i32 @test5() {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[B:%.*]] = alloca [[STRUCT_S0:%.*]], align 8
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 4, ptr [[B]])
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 1 [[B]], ptr align 1 @b, i64 4, i1 false)
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; CHECK-NEXT: store i32 0, ptr @b, align 4
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; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[B]], align 4
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; CHECK-NEXT: store i32 [[TMP0]], ptr @a, align 4
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 4, ptr [[B]])
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; CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr @a, align 4
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; CHECK-NEXT: ret i32 [[TMP1]]
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;
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entry:
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tail call void @f5(ptr byval(%struct.S0) align 4 @b)
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%0 = load i32, ptr @a, align 4
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ret i32 %0
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}
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; Inlining a byval struct that is in a different address space compared to the
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; alloca address space is at the moment not expected. That would need
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; adjustments inside the inlined function since the address space attribute of
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; the inlined argument changes.
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%struct.S1 = type { i32 }
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@d = addrspace(1) global %struct.S1 { i32 1 }, align 4
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@c = common addrspace(1) global i32 0, align 4
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define internal void @f5_as1(ptr addrspace(1) byval(%struct.S1) nocapture readonly align 4 %p) {
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; CHECK-LABEL: define internal void @f5_as1(
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; CHECK-SAME: ptr addrspace(1) nocapture readonly byval([[STRUCT_S1:%.*]]) align 4 [[P:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: store i32 0, ptr addrspace(1) @d, align 4
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; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr addrspace(1) [[P]], align 4
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; CHECK-NEXT: store i32 [[TMP0]], ptr addrspace(1) @c, align 4
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; CHECK-NEXT: ret void
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;
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entry:
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store i32 0, ptr addrspace(1) @d, align 4
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%0 = load i32, ptr addrspace(1) %p, align 4
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store i32 %0, ptr addrspace(1) @c, align 4
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ret void
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}
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define i32 @test5_as1() {
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; CHECK-LABEL: define i32 @test5_as1() {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: tail call void @f5_as1(ptr addrspace(1) byval([[STRUCT_S1:%.*]]) align 4 @d)
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; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr addrspace(1) @c, align 4
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; CHECK-NEXT: ret i32 [[TMP0]]
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;
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entry:
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tail call void @f5_as1(ptr addrspace(1) byval(%struct.S1) align 4 @d)
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%0 = load i32, ptr addrspace(1) @c, align 4
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ret i32 %0
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}
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