116 lines
3.3 KiB
LLVM
116 lines
3.3 KiB
LLVM
; RUN: opt < %s -passes=inline -S | FileCheck %s
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; RUN: opt < %s -passes='cgscc(inline,function(instcombine))' -S | FileCheck %s
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declare void @ext_method(ptr, i32)
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declare signext i16 @vararg_fn(...) #0
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declare "cc 9" void @vararg_fn_cc9(ptr %p, ...)
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define linkonce_odr void @thunk(ptr %this, ...) {
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%this_adj = getelementptr i8, ptr %this, i32 4
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musttail call void (ptr, ...) @ext_method(ptr nonnull %this_adj, ...)
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ret void
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}
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define void @thunk_caller(ptr %p) {
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call void (ptr, ...) @thunk(ptr %p, i32 42)
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ret void
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}
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; CHECK-LABEL: define void @thunk_caller(ptr %p)
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; CHECK: call void (ptr, ...) @ext_method(ptr nonnull %this_adj.i, i32 42)
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define signext i16 @test_callee_2(...) {
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%res = musttail call signext i16 (...) @vararg_fn(...) #0
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ret i16 %res
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}
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define void @test_caller_2(ptr %p, ptr %q, i16 %r) {
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call signext i16 (...) @test_callee_2(ptr %p, ptr byval(i8) %q, i16 signext %r)
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ret void
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}
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; CHECK-LABEL: define void @test_caller_2
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; CHECK: call signext i16 (...) @vararg_fn(ptr %p, ptr byval(i8) %q, i16 signext %r) [[FN_ATTRS:#[0-9]+]]
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define void @test_callee_3(ptr %p, ...) {
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call signext i16 (...) @vararg_fn()
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ret void
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}
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define void @test_caller_3(ptr %p, ptr %q) {
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call void (ptr, ...) @test_callee_3(ptr nonnull %p, ptr %q)
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ret void
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}
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; CHECK-LABEL: define void @test_caller_3
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; CHECK: call signext i16 (...) @vararg_fn()
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define void @test_preserve_cc(ptr %p, ...) {
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musttail call "cc 9" void (ptr, ...) @vararg_fn_cc9(ptr %p, ...)
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ret void
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}
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define void @test_caller_preserve_cc(ptr %p, ptr %q) {
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call void (ptr, ...) @test_preserve_cc(ptr %p, ptr %q)
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ret void
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}
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; CHECK-LABEL: define void @test_caller_preserve_cc
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; CHECK: call "cc 9" void (ptr, ...) @vararg_fn_cc9(ptr %p, ptr %q)
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define internal i32 @varg_accessed(...) {
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entry:
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%vargs = alloca ptr, align 8
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call void @llvm.va_start(ptr %vargs)
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%va1 = va_arg ptr %vargs, i32
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call void @llvm.va_end(ptr %vargs)
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ret i32 %va1
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}
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define internal i32 @varg_accessed_alwaysinline(...) alwaysinline {
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entry:
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%vargs = alloca ptr, align 8
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call void @llvm.va_start(ptr %vargs)
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%va1 = va_arg ptr %vargs, i32
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call void @llvm.va_end(ptr %vargs)
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ret i32 %va1
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}
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define i32 @call_vargs() {
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%res1 = call i32 (...) @varg_accessed(i32 10)
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%res2 = call i32 (...) @varg_accessed_alwaysinline(i32 15)
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%res = add i32 %res1, %res2
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ret i32 %res
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}
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; CHECK-LABEL: @call_vargs
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; CHECK: %res1 = call i32 (...) @varg_accessed(i32 10)
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; CHECK-NEXT: %res2 = call i32 (...) @varg_accessed_alwaysinline(i32 15)
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define void @caller_with_vastart(ptr noalias nocapture readnone %args, ...) {
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entry:
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%ap = alloca ptr, align 4
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%ap2 = alloca ptr, align 4
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call void @llvm.va_start(ptr nonnull %ap)
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call fastcc void @callee_with_vaend(ptr nonnull %ap)
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call void @llvm.va_start(ptr nonnull %ap)
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call fastcc void @callee_with_vaend_alwaysinline(ptr nonnull %ap)
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ret void
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}
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define internal fastcc void @callee_with_vaend_alwaysinline(ptr %a) alwaysinline {
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entry:
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tail call void @llvm.va_end(ptr %a)
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ret void
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}
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define internal fastcc void @callee_with_vaend(ptr %a) {
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entry:
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tail call void @llvm.va_end(ptr %a)
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ret void
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}
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; CHECK-LABEL: @caller_with_vastart
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; CHECK-NOT: @callee_with_vaend
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; CHECK-NOT: @callee_with_vaend_alwaysinline
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declare void @llvm.va_start(ptr)
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declare void @llvm.va_end(ptr)
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; CHECK: attributes [[FN_ATTRS]] = { "foo"="bar" }
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attributes #0 = { "foo"="bar" }
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