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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes
; RUN: opt < %s -passes=argpromotion -S | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
%union.u = type { x86_fp80 }
%struct.s = type { double, i16, i8, [5 x i8] }
@b = internal global %struct.s { double 3.14, i16 9439, i8 25, [5 x i8] undef }, align 16
%struct.Foo = type { i32, i64 }
@a = internal global %struct.Foo { i32 1, i64 2 }, align 8
define void @run() {
; CHECK-LABEL: define {{[^@]+}}@run() {
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr @b, i64 10
; CHECK-NEXT: [[B_VAL:%.*]] = load i8, ptr [[TMP1]], align 1
; CHECK-NEXT: [[TMP2:%.*]] = tail call i8 @UseLongDoubleUnsafely(i8 [[B_VAL]])
; CHECK-NEXT: [[B_VAL1:%.*]] = load x86_fp80, ptr @b, align 16
; CHECK-NEXT: [[TMP3:%.*]] = tail call x86_fp80 @UseLongDoubleSafely(x86_fp80 [[B_VAL1]])
; CHECK-NEXT: [[TMP4:%.*]] = tail call x86_fp80 @UseLongDoubleSafelyNoPromotion(ptr byval([[UNION_U:%.*]]) align 16 @b)
; CHECK-NEXT: [[A_VAL:%.*]] = load i64, ptr @a, align 8
; CHECK-NEXT: [[TMP5:%.*]] = call i64 @AccessPaddingOfStruct(i64 [[A_VAL]])
; CHECK-NEXT: [[TMP6:%.*]] = call i64 @CaptureAStruct(ptr byval([[STRUCT_FOO:%.*]]) @a)
; CHECK-NEXT: ret void
;
tail call i8 @UseLongDoubleUnsafely(ptr byval(%union.u) align 16 @b)
tail call x86_fp80 @UseLongDoubleSafely(ptr byval(%union.u) align 16 @b)
tail call x86_fp80 @UseLongDoubleSafelyNoPromotion(ptr byval(%union.u) align 16 @b)
call i64 @AccessPaddingOfStruct(ptr byval(%struct.Foo) @a)
call i64 @CaptureAStruct(ptr byval(%struct.Foo) @a)
ret void
}
define internal i8 @UseLongDoubleUnsafely(ptr byval(%union.u) align 16 %arg) {
; CHECK-LABEL: define {{[^@]+}}@UseLongDoubleUnsafely
; CHECK-SAME: (i8 [[ARG_10_VAL:%.*]]) {
; CHECK-NEXT: ret i8 [[ARG_10_VAL]]
;
%gep = getelementptr inbounds %struct.s, ptr %arg, i64 0, i32 2
%result = load i8, ptr %gep
ret i8 %result
}
define internal x86_fp80 @UseLongDoubleSafely(ptr byval(%union.u) align 16 %arg) {
; CHECK-LABEL: define {{[^@]+}}@UseLongDoubleSafely
; CHECK-SAME: (x86_fp80 [[ARG_0_VAL:%.*]]) {
; CHECK-NEXT: ret x86_fp80 [[ARG_0_VAL]]
;
%fp80 = load x86_fp80, ptr %arg
ret x86_fp80 %fp80
}
define internal x86_fp80 @UseLongDoubleSafelyNoPromotion(ptr byval(%union.u) align 16 %arg) {
; CHECK-LABEL: define {{[^@]+}}@UseLongDoubleSafelyNoPromotion
; CHECK-SAME: (ptr byval([[UNION_U:%.*]]) align 16 [[ARG:%.*]]) {
; CHECK-NEXT: [[IDX_SLOT:%.*]] = alloca i64, align 8
; CHECK-NEXT: store i64 0, ptr [[IDX_SLOT]], align 8
; CHECK-NEXT: [[IDX:%.*]] = load i64, ptr [[IDX_SLOT]], align 8
; CHECK-NEXT: [[GEP_IDX:%.*]] = getelementptr inbounds [[UNION_U]], ptr [[ARG]], i64 [[IDX]], i32 0
; CHECK-NEXT: [[FP80:%.*]] = load x86_fp80, ptr [[ARG]], align 16
; CHECK-NEXT: ret x86_fp80 [[FP80]]
;
%idx_slot = alloca i64, align 8
store i64 0, ptr %idx_slot, align 8
%idx = load i64, ptr %idx_slot, align 8
%gep_idx = getelementptr inbounds %union.u, ptr %arg, i64 %idx, i32 0 ; to protect from promotion
%fp80 = load x86_fp80, ptr %arg
ret x86_fp80 %fp80
}
define internal i64 @AccessPaddingOfStruct(ptr byval(%struct.Foo) %a) {
; CHECK-LABEL: define {{[^@]+}}@AccessPaddingOfStruct
; CHECK-SAME: (i64 [[A_0_VAL:%.*]]) {
; CHECK-NEXT: ret i64 [[A_0_VAL]]
;
%v = load i64, ptr %a
ret i64 %v
}
define internal i64 @CaptureAStruct(ptr byval(%struct.Foo) %a) {
; CHECK-LABEL: define {{[^@]+}}@CaptureAStruct
; CHECK-SAME: (ptr byval([[STRUCT_FOO:%.*]]) [[A:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A_PTR:%.*]] = alloca ptr, align 8
; CHECK-NEXT: br label [[LOOP:%.*]]
; CHECK: loop:
; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ null, [[ENTRY:%.*]] ], [ [[A]], [[LOOP]] ]
; CHECK-NEXT: [[TMP0:%.*]] = phi ptr [ [[A]], [[ENTRY]] ], [ [[TMP0]], [[LOOP]] ]
; CHECK-NEXT: store ptr [[PHI]], ptr [[A_PTR]], align 8
; CHECK-NEXT: br label [[LOOP]]
;
entry:
%a_ptr = alloca ptr
br label %loop
loop:
%phi = phi ptr [ null, %entry ], [ %a, %loop ]
%0 = phi ptr [ %a, %entry ], [ %0, %loop ]
store ptr %phi, ptr %a_ptr
br label %loop
}
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