forked from OSchip/llvm-project
43 lines
937 B
LLVM
43 lines
937 B
LLVM
; RUN: llc -O2 -march=x86 < %s | FileCheck %s
|
|
|
|
define i32* @fooOptnone(i32* %p, i32* %q, i32** %z) #0 {
|
|
entry:
|
|
%r = load i32, i32* %p
|
|
%s = load i32, i32* %q
|
|
%y = load i32*, i32** %z
|
|
|
|
%t0 = add i32 %r, %s
|
|
%t1 = add i32 %t0, 1
|
|
%t2 = getelementptr i32, i32* %y, i32 1
|
|
%t3 = getelementptr i32, i32* %t2, i32 %t1
|
|
|
|
ret i32* %t3
|
|
|
|
; 'optnone' should use fast-isel which will not produce 'lea'.
|
|
; CHECK-LABEL: fooOptnone:
|
|
; CHECK-NOT: lea
|
|
; CHECK: ret
|
|
}
|
|
|
|
define i32* @fooNormal(i32* %p, i32* %q, i32** %z) #1 {
|
|
entry:
|
|
%r = load i32, i32* %p
|
|
%s = load i32, i32* %q
|
|
%y = load i32*, i32** %z
|
|
|
|
%t0 = add i32 %r, %s
|
|
%t1 = add i32 %t0, 1
|
|
%t2 = getelementptr i32, i32* %y, i32 1
|
|
%t3 = getelementptr i32, i32* %t2, i32 %t1
|
|
|
|
ret i32* %t3
|
|
|
|
; Normal ISel will produce 'lea'.
|
|
; CHECK-LABEL: fooNormal:
|
|
; CHECK: lea
|
|
; CHECK: ret
|
|
}
|
|
|
|
attributes #0 = { nounwind optnone noinline }
|
|
attributes #1 = { nounwind }
|