| ; RUN: llc < %s -march=x86-64 -mattr=+sse41,-avx,+rdrand | FileCheck %s |
| |
| define i32 @foo(<2 x i64> %c, i32 %a, i32 %b) { |
| %t1 = call i32 @llvm.x86.sse41.ptestz(<2 x i64> %c, <2 x i64> %c) |
| %t2 = icmp ne i32 %t1, 0 |
| %t3 = select i1 %t2, i32 %a, i32 %b |
| ret i32 %t3 |
| ; CHECK: foo |
| ; CHECK: ptest |
| ; CHECK-NOT: testl |
| ; CHECK: cmov |
| ; CHECK: ret |
| } |
| |
| define i32 @bar(<2 x i64> %c) { |
| entry: |
| %0 = call i32 @llvm.x86.sse41.ptestz(<2 x i64> %c, <2 x i64> %c) |
| %1 = icmp ne i32 %0, 0 |
| br i1 %1, label %if-true-block, label %endif-block |
| if-true-block: ; preds = %entry |
| ret i32 0 |
| endif-block: ; preds = %entry, |
| ret i32 1 |
| ; CHECK: bar |
| ; CHECK: ptest |
| ; CHECK-NOT: testl |
| ; CHECK: jne |
| ; CHECK: ret |
| } |
| |
| define i32 @bax(<2 x i64> %c) { |
| %t1 = call i32 @llvm.x86.sse41.ptestz(<2 x i64> %c, <2 x i64> %c) |
| %t2 = icmp eq i32 %t1, 1 |
| %t3 = zext i1 %t2 to i32 |
| ret i32 %t3 |
| ; CHECK: bax |
| ; CHECK: ptest |
| ; CHECK-NOT: cmpl |
| ; CHECK: ret |
| } |
| |
| define i32 @rnd(i32 %arg) nounwind uwtable { |
| %1 = tail call { i32, i32 } @llvm.x86.rdrand.32() nounwind |
| %2 = extractvalue { i32, i32 } %1, 0 |
| %3 = extractvalue { i32, i32 } %1, 1 |
| %4 = icmp eq i32 %3, 0 |
| %5 = select i1 %4, i32 0, i32 %arg |
| %6 = add i32 %5, %2 |
| ret i32 %6 |
| ; CHECK: rnd |
| ; CHECK: rdrand |
| ; CHECK: cmov |
| ; CHECK-NOT: cmov |
| ; CHECK: ret |
| } |
| |
| declare i32 @llvm.x86.sse41.ptestz(<2 x i64>, <2 x i64>) nounwind readnone |
| declare { i32, i32 } @llvm.x86.rdrand.32() nounwind |