inalloca.ll
2.28 KB
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes
; RUN: opt %s -globalopt -argpromotion -sroa -S | FileCheck %s
; RUN: opt %s -passes='module(globalopt),cgscc(argpromotion),function(sroa)' -S | FileCheck %s
target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
%struct.ss = type { i32, i32 }
; Argpromote + sroa should change this to passing the two integers by value.
define internal i32 @f(%struct.ss* inalloca %s) {
; CHECK-LABEL: define {{[^@]+}}@f
; CHECK-SAME: (i32 [[S_0_0_VAL:%.*]], i32 [[S_0_1_VAL:%.*]]) unnamed_addr
; CHECK-NEXT: entry:
; CHECK-NEXT: [[R:%.*]] = add i32 [[S_0_0_VAL]], [[S_0_1_VAL]]
; CHECK-NEXT: ret i32 [[R]]
;
entry:
%f0 = getelementptr %struct.ss, %struct.ss* %s, i32 0, i32 0
%f1 = getelementptr %struct.ss, %struct.ss* %s, i32 0, i32 1
%a = load i32, i32* %f0, align 4
%b = load i32, i32* %f1, align 4
%r = add i32 %a, %b
ret i32 %r
}
define i32 @main() {
; CHECK-LABEL: define {{[^@]+}}@main() local_unnamed_addr
; CHECK-NEXT: entry:
; CHECK-NEXT: [[R:%.*]] = call fastcc i32 @f(i32 1, i32 2)
; CHECK-NEXT: ret i32 [[R]]
;
entry:
%S = alloca inalloca %struct.ss
%f0 = getelementptr %struct.ss, %struct.ss* %S, i32 0, i32 0
%f1 = getelementptr %struct.ss, %struct.ss* %S, i32 0, i32 1
store i32 1, i32* %f0, align 4
store i32 2, i32* %f1, align 4
%r = call i32 @f(%struct.ss* inalloca %S)
ret i32 %r
}
; Argpromote can't promote %a because of the icmp use.
define internal i1 @g(%struct.ss* %a, %struct.ss* inalloca %b) nounwind {
; CHECK-LABEL: define {{[^@]+}}@g
; CHECK-SAME: (%struct.ss* [[A:%.*]], %struct.ss* [[B:%.*]]) unnamed_addr
; CHECK-NEXT: entry:
; CHECK-NEXT: [[C:%.*]] = icmp eq %struct.ss* [[A]], [[B]]
; CHECK-NEXT: ret i1 [[C]]
;
entry:
%c = icmp eq %struct.ss* %a, %b
ret i1 %c
}
define i32 @test() {
; CHECK-LABEL: define {{[^@]+}}@test() local_unnamed_addr
; CHECK-NEXT: entry:
; CHECK-NEXT: [[S:%.*]] = alloca inalloca [[STRUCT_SS:%.*]]
; CHECK-NEXT: [[C:%.*]] = call fastcc i1 @g(%struct.ss* [[S]], %struct.ss* [[S]])
; CHECK-NEXT: ret i32 0
;
entry:
%S = alloca inalloca %struct.ss
%c = call i1 @g(%struct.ss* %S, %struct.ss* inalloca %S)
ret i32 0
}