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| ; RUN: llc < %s -mtriple=x86_64-linux-gnu | FileCheck %s
; PR43155, we used to emit dead stack adjustments for noreturn calls with stack
; arguments.
; Original source code:
; __attribute__((noreturn)) void exit_manyarg(int, int, int, int, int, int, int, int, int, int);
; struct ByVal {
; int vals[10];
; };
; struct ByVal getbyval();
; void make_push_unprofitable(struct ByVal);
; int foo(int c) {
; if (c)
; exit_manyarg(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
; make_push_unprofitable(getbyval());
; make_push_unprofitable(getbyval());
; make_push_unprofitable(getbyval());
; return 0;
; }
%struct.ByVal = type { [10 x i32] }
define dso_local i32 @foo(i32 %c) {
entry:
%agg.tmp = alloca %struct.ByVal, align 8
%agg.tmp1 = alloca %struct.ByVal, align 8
%agg.tmp2 = alloca %struct.ByVal, align 8
%tobool = icmp eq i32 %c, 0
br i1 %tobool, label %if.end, label %if.then
if.then: ; preds = %entry
tail call void @exit_manyarg(i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10) #3
unreachable
if.end: ; preds = %entry
call void @getbyval(%struct.ByVal* nonnull sret %agg.tmp) #4
call void @make_push_unprofitable(%struct.ByVal* nonnull byval(%struct.ByVal) align 8 %agg.tmp) #4
call void @getbyval(%struct.ByVal* nonnull sret %agg.tmp1) #4
call void @make_push_unprofitable(%struct.ByVal* nonnull byval(%struct.ByVal) align 8 %agg.tmp1) #4
call void @getbyval(%struct.ByVal* nonnull sret %agg.tmp2) #4
call void @make_push_unprofitable(%struct.ByVal* nonnull byval(%struct.ByVal) align 8 %agg.tmp2) #4
ret i32 0
}
; CHECK-LABEL: foo:
; The main body is not important.
; CHECK: callq exit_manyarg
; CHECK-NOT: sub
; CHECK-NOT: add
; CHECK: # -- End function
; Function Attrs: noreturn
declare dso_local void @exit_manyarg(i32, i32, i32, i32, i32, i32, i32, i32, i32, i32) noreturn
declare dso_local void @make_push_unprofitable(%struct.ByVal* byval(%struct.ByVal) align 8)
declare dso_local void @getbyval(%struct.ByVal* sret)
|