| ; RUN: opt < %s -passes=globalopt -S | FileCheck %s |
| |
| declare token @llvm.call.preallocated.setup(i32) |
| declare i8* @llvm.call.preallocated.arg(token, i32) |
| |
| define internal i32 @f(i32* %m) { |
| ; CHECK-LABEL: define internal fastcc i32 @f |
| %v = load i32, i32* %m |
| ret i32 %v |
| } |
| |
| define internal x86_thiscallcc i32 @g(i32* %m) { |
| ; CHECK-LABEL: define internal fastcc i32 @g |
| %v = load i32, i32* %m |
| ret i32 %v |
| } |
| |
| ; Leave this one alone, because the user went out of their way to request this |
| ; convention. |
| define internal coldcc i32 @h(i32* %m) { |
| ; CHECK-LABEL: define internal coldcc i32 @h |
| %v = load i32, i32* %m |
| ret i32 %v |
| } |
| |
| define internal i32 @j(i32* %m) { |
| ; CHECK-LABEL: define internal i32 @j |
| %v = load i32, i32* %m |
| ret i32 %v |
| } |
| |
| define internal i32 @inalloca(i32* inalloca(i32) %p) { |
| ; CHECK-LABEL: define internal fastcc i32 @inalloca(i32* %p) |
| %rv = load i32, i32* %p |
| ret i32 %rv |
| } |
| |
| define i32 @inalloca2_caller(i32* inalloca(i32) %p) { |
| %rv = musttail call i32 @inalloca2(i32* inalloca(i32) %p) |
| ret i32 %rv |
| } |
| define internal i32 @inalloca2(i32* inalloca(i32) %p) { |
| ; Because of the musttail caller, this inalloca cannot be dropped. |
| ; CHECK-LABEL: define internal i32 @inalloca2(i32* inalloca(i32) %p) |
| %rv = load i32, i32* %p |
| ret i32 %rv |
| } |
| |
| define internal i32 @preallocated(i32* preallocated(i32) %p) { |
| ; CHECK-LABEL: define internal fastcc i32 @preallocated(i32* %p) |
| %rv = load i32, i32* %p |
| ret i32 %rv |
| } |
| |
| define void @call_things() { |
| %m = alloca i32 |
| call i32 @f(i32* %m) |
| call x86_thiscallcc i32 @g(i32* %m) |
| call coldcc i32 @h(i32* %m) |
| call i32 @j(i32* %m) |
| %args = alloca inalloca i32 |
| call i32 @inalloca(i32* inalloca(i32) %args) |
| %c = call token @llvm.call.preallocated.setup(i32 1) |
| %N = call i8* @llvm.call.preallocated.arg(token %c, i32 0) preallocated(i32) |
| %n = bitcast i8* %N to i32* |
| call i32 @preallocated(i32* preallocated(i32) %n) ["preallocated"(token %c)] |
| ret void |
| } |
| ; CHECK-LABEL: define void @call_things() |
| ; CHECK: call fastcc i32 @f |
| ; CHECK: call fastcc i32 @g |
| ; CHECK: call coldcc i32 @h |
| ; CHECK: call i32 @j |
| ; CHECK: call fastcc i32 @inalloca(i32* %args) |
| ; CHECK-NOT: llvm.call.preallocated |
| ; CHECK: call fastcc i32 @preallocated(i32* %n) |
| |
| @llvm.used = appending global [1 x i8*] [ |
| i8* bitcast (i32(i32*)* @j to i8*) |
| ], section "llvm.metadata" |