mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 18:54:02 +01:00
a62270de2c
The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
65 lines
2.0 KiB
LLVM
65 lines
2.0 KiB
LLVM
; RUN: opt -S -instcombine < %s | FileCheck %s
|
|
|
|
target triple = "x86_64-apple-macosx10.6.6"
|
|
|
|
define zeroext i16 @foo1(i32 %on_off) {
|
|
; CHECK-LABEL: @foo1(
|
|
; CHECK-NEXT: [[ON_OFF_TR:%.*]] = trunc i32 %on_off to i16
|
|
; CHECK-NEXT: [[TMP1:%.*]] = shl i16 [[ON_OFF_TR]], 1
|
|
; CHECK-NEXT: [[CONV:%.*]] = add i16 [[TMP1]], -2
|
|
; CHECK-NEXT: ret i16 [[CONV]]
|
|
;
|
|
%on_off.addr = alloca i32, align 4
|
|
%a = alloca i32, align 4
|
|
store i32 %on_off, i32* %on_off.addr, align 4
|
|
%tmp = load i32, i32* %on_off.addr, align 4
|
|
%sub = sub i32 1, %tmp
|
|
%mul = mul i32 %sub, -2
|
|
store i32 %mul, i32* %a, align 4
|
|
%tmp1 = load i32, i32* %a, align 4
|
|
%conv = trunc i32 %tmp1 to i16
|
|
ret i16 %conv
|
|
}
|
|
|
|
define zeroext i16 @foo2(i32 %on_off, i32 %q) {
|
|
; CHECK-LABEL: @foo2(
|
|
; CHECK-NEXT: [[SUBA:%.*]] = sub i32 %on_off, %q
|
|
; CHECK-NEXT: [[SUBA_TR:%.*]] = trunc i32 [[SUBA]] to i16
|
|
; CHECK-NEXT: [[CONV:%.*]] = shl i16 [[SUBA_TR]], 2
|
|
; CHECK-NEXT: ret i16 [[CONV]]
|
|
;
|
|
%on_off.addr = alloca i32, align 4
|
|
%q.addr = alloca i32, align 4
|
|
%a = alloca i32, align 4
|
|
store i32 %on_off, i32* %on_off.addr, align 4
|
|
store i32 %q, i32* %q.addr, align 4
|
|
%tmp = load i32, i32* %q.addr, align 4
|
|
%tmp1 = load i32, i32* %on_off.addr, align 4
|
|
%sub = sub i32 %tmp, %tmp1
|
|
%mul = mul i32 %sub, -4
|
|
store i32 %mul, i32* %a, align 4
|
|
%tmp2 = load i32, i32* %a, align 4
|
|
%conv = trunc i32 %tmp2 to i16
|
|
ret i16 %conv
|
|
}
|
|
|
|
define zeroext i16 @foo3(i32 %on_off) {
|
|
; CHECK-LABEL: @foo3(
|
|
; CHECK-NEXT: [[ON_OFF_TR:%.*]] = trunc i32 %on_off to i16
|
|
; CHECK-NEXT: [[TMP1:%.*]] = shl i16 [[ON_OFF_TR]], 2
|
|
; CHECK-NEXT: [[CONV:%.*]] = add i16 [[TMP1]], -28
|
|
; CHECK-NEXT: ret i16 [[CONV]]
|
|
;
|
|
%on_off.addr = alloca i32, align 4
|
|
%a = alloca i32, align 4
|
|
store i32 %on_off, i32* %on_off.addr, align 4
|
|
%tmp = load i32, i32* %on_off.addr, align 4
|
|
%sub = sub i32 7, %tmp
|
|
%mul = mul i32 %sub, -4
|
|
store i32 %mul, i32* %a, align 4
|
|
%tmp1 = load i32, i32* %a, align 4
|
|
%conv = trunc i32 %tmp1 to i16
|
|
ret i16 %conv
|
|
}
|
|
|