| Kyle Butt | 6131128 | 2016-03-23 19:51:22 +0000 | [diff] [blame] | 1 | ; RUN: llc -O2 < %s | FileCheck %s |
| 2 | target datalayout = "e-m:e-i64:64-n32:64" |
| 3 | target triple = "powerpc64le-unknown-linux-gnu" |
| 4 | |
| 5 | ; CHECK-LABEL: test1 |
| 6 | define i8 @test1(i32 %a) { |
| 7 | entry: |
| 8 | ; CHECK-NOT: rlwinm {{{[0-9]+}}}, {{[0-9]+}}, 0, 24, 27 |
| 9 | ; CHECK: rlwinm. [[REG:[0-9]+]], {{[0-9]+}}, 0, 24, 27 |
| 10 | ; CHECK-NOT: cmplwi [[REG]], 0 |
| 11 | ; CHECK: beq 0 |
| 12 | %0 = and i32 %a, 240 |
| 13 | %1 = icmp eq i32 %0, 0 |
| 14 | br i1 %1, label %eq0, label %neq0 |
| 15 | eq0: |
| 16 | ret i8 102 |
| 17 | neq0: |
| 18 | ret i8 116 |
| 19 | } |
| 20 | |
| 21 | ; CHECK-LABEL: test2 |
| 22 | define i8 @test2(i32 %a) { |
| 23 | entry: |
| 24 | ; CHECK: rlwinm [[REG:[0-9]+]], {{[0-9]+}}, 0, 28, 23 |
| 25 | ; CHECK: cmplwi [[REG]], 0 |
| 26 | ; CHECK: beq 0 |
| 27 | %0 = and i32 %a, -241 |
| 28 | %1 = icmp eq i32 %0, 0 |
| 29 | br i1 %1, label %eq0, label %neq0 |
| 30 | eq0: |
| 31 | ret i8 102 |
| 32 | neq0: |
| 33 | ret i8 116 |
| 34 | } |
| 35 | |
| 36 | declare {i32, i1} @llvm.ssub.with.overflow.i32(i32 %a, i32 %b) |
| 37 | |
| 38 | ; CHECK-LABEL: test3 |
| 39 | define i8 @test3(i32 %a, i32 %b) { |
| 40 | entry: |
| 41 | ; CHECK-NOT: rlwnm {{{[0-9]+}}}, {{[0-9]+}}, {{{[0-9]+}}}, 28, 31 |
| 42 | ; CHECK: rlwnm. [[REG:[0-9]+]], {{[0-9]+}}, 4, 28, 31 |
| 43 | ; CHECK-NOT: cmplwi [[REG]], 0 |
| 44 | ; CHECK: beq 0 |
| 45 | %left = shl i32 %a, %b |
| 46 | %res = call {i32, i1} @llvm.ssub.with.overflow.i32(i32 32, i32 %b) |
| 47 | %right_amount = extractvalue {i32, i1} %res, 0 |
| 48 | %right = lshr i32 %a, %right_amount |
| 49 | %0 = or i32 %left, %right |
| 50 | %1 = and i32 %0, 15 |
| 51 | %2 = icmp eq i32 %1, 0 |
| 52 | br i1 %2, label %eq0, label %neq0 |
| 53 | eq0: |
| 54 | ret i8 102 |
| 55 | neq0: |
| 56 | ret i8 116 |
| 57 | } |