1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes 2; RUN: opt < %s -passes=argpromotion -S | FileCheck %s 3 4target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 5target triple = "x86_64-unknown-linux-gnu" 6 7%union.u = type { x86_fp80 } 8%struct.s = type { double, i16, i8, [5 x i8] } 9 10@b = internal global %struct.s { double 3.14, i16 9439, i8 25, [5 x i8] undef }, align 16 11 12%struct.Foo = type { i32, i64 } 13@a = internal global %struct.Foo { i32 1, i64 2 }, align 8 14 15define void @run() { 16; CHECK-LABEL: define {{[^@]+}}@run() { 17; CHECK-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr @b, i64 10 18; CHECK-NEXT: [[B_VAL:%.*]] = load i8, ptr [[TMP1]], align 1 19; CHECK-NEXT: [[TMP2:%.*]] = tail call i8 @UseLongDoubleUnsafely(i8 [[B_VAL]]) 20; CHECK-NEXT: [[B_VAL1:%.*]] = load x86_fp80, ptr @b, align 16 21; CHECK-NEXT: [[TMP3:%.*]] = tail call x86_fp80 @UseLongDoubleSafely(x86_fp80 [[B_VAL1]]) 22; CHECK-NEXT: [[TMP4:%.*]] = tail call x86_fp80 @UseLongDoubleSafelyNoPromotion(ptr byval([[UNION_U:%.*]]) align 16 @b) 23; CHECK-NEXT: [[A_VAL:%.*]] = load i64, ptr @a, align 8 24; CHECK-NEXT: [[TMP5:%.*]] = call i64 @AccessPaddingOfStruct(i64 [[A_VAL]]) 25; CHECK-NEXT: [[TMP6:%.*]] = call i64 @CaptureAStruct(ptr byval([[STRUCT_FOO:%.*]]) @a) 26; CHECK-NEXT: ret void 27; 28 tail call i8 @UseLongDoubleUnsafely(ptr byval(%union.u) align 16 @b) 29 tail call x86_fp80 @UseLongDoubleSafely(ptr byval(%union.u) align 16 @b) 30 tail call x86_fp80 @UseLongDoubleSafelyNoPromotion(ptr byval(%union.u) align 16 @b) 31 call i64 @AccessPaddingOfStruct(ptr byval(%struct.Foo) @a) 32 call i64 @CaptureAStruct(ptr byval(%struct.Foo) @a) 33 ret void 34} 35 36define internal i8 @UseLongDoubleUnsafely(ptr byval(%union.u) align 16 %arg) { 37; CHECK-LABEL: define {{[^@]+}}@UseLongDoubleUnsafely 38; CHECK-SAME: (i8 [[ARG_10_VAL:%.*]]) { 39; CHECK-NEXT: ret i8 [[ARG_10_VAL]] 40; 41 %gep = getelementptr inbounds %struct.s, ptr %arg, i64 0, i32 2 42 %result = load i8, ptr %gep 43 ret i8 %result 44} 45 46define internal x86_fp80 @UseLongDoubleSafely(ptr byval(%union.u) align 16 %arg) { 47; CHECK-LABEL: define {{[^@]+}}@UseLongDoubleSafely 48; CHECK-SAME: (x86_fp80 [[ARG_0_VAL:%.*]]) { 49; CHECK-NEXT: ret x86_fp80 [[ARG_0_VAL]] 50; 51 %fp80 = load x86_fp80, ptr %arg 52 ret x86_fp80 %fp80 53} 54 55define internal x86_fp80 @UseLongDoubleSafelyNoPromotion(ptr byval(%union.u) align 16 %arg) { 56; CHECK-LABEL: define {{[^@]+}}@UseLongDoubleSafelyNoPromotion 57; CHECK-SAME: (ptr byval([[UNION_U:%.*]]) align 16 [[ARG:%.*]]) { 58; CHECK-NEXT: [[IDX_SLOT:%.*]] = alloca i64, align 8 59; CHECK-NEXT: store i64 0, ptr [[IDX_SLOT]], align 8 60; CHECK-NEXT: [[IDX:%.*]] = load i64, ptr [[IDX_SLOT]], align 8 61; CHECK-NEXT: [[GEP_IDX:%.*]] = getelementptr inbounds [[UNION_U]], ptr [[ARG]], i64 [[IDX]], i32 0 62; CHECK-NEXT: [[FP80:%.*]] = load x86_fp80, ptr [[ARG]], align 16 63; CHECK-NEXT: ret x86_fp80 [[FP80]] 64; 65 %idx_slot = alloca i64, align 8 66 store i64 0, ptr %idx_slot, align 8 67 %idx = load i64, ptr %idx_slot, align 8 68 %gep_idx = getelementptr inbounds %union.u, ptr %arg, i64 %idx, i32 0 ; to protect from promotion 69 %fp80 = load x86_fp80, ptr %arg 70 ret x86_fp80 %fp80 71} 72 73define internal i64 @AccessPaddingOfStruct(ptr byval(%struct.Foo) %a) { 74; CHECK-LABEL: define {{[^@]+}}@AccessPaddingOfStruct 75; CHECK-SAME: (i64 [[A_0_VAL:%.*]]) { 76; CHECK-NEXT: ret i64 [[A_0_VAL]] 77; 78 %v = load i64, ptr %a 79 ret i64 %v 80} 81 82define internal i64 @CaptureAStruct(ptr byval(%struct.Foo) %a) { 83; CHECK-LABEL: define {{[^@]+}}@CaptureAStruct 84; CHECK-SAME: (ptr byval([[STRUCT_FOO:%.*]]) [[A:%.*]]) { 85; CHECK-NEXT: entry: 86; CHECK-NEXT: [[A_PTR:%.*]] = alloca ptr, align 8 87; CHECK-NEXT: br label [[LOOP:%.*]] 88; CHECK: loop: 89; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ null, [[ENTRY:%.*]] ], [ [[A]], [[LOOP]] ] 90; CHECK-NEXT: [[TMP0:%.*]] = phi ptr [ [[A]], [[ENTRY]] ], [ [[TMP0]], [[LOOP]] ] 91; CHECK-NEXT: store ptr [[PHI]], ptr [[A_PTR]], align 8 92; CHECK-NEXT: br label [[LOOP]] 93; 94entry: 95 %a_ptr = alloca ptr 96 br label %loop 97 98loop: 99 %phi = phi ptr [ null, %entry ], [ %a, %loop ] 100 %0 = phi ptr [ %a, %entry ], [ %0, %loop ] 101 store ptr %phi, ptr %a_ptr 102 br label %loop 103} 104