1 ; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s 2 ; rdar://7329206 3 4 ; Use sbb x, x to materialize carry bit in a GPR. The value is either 5 ; all 1's or all 0's. 6 7 define zeroext i16 @t1(i16 zeroext %x) nounwind readnone ssp { 8 entry: 9 ; CHECK-LABEL: t1: 10 ; CHECK: seta %al 11 ; CHECK: movzbl %al, %eax 12 ; CHECK: shll $5, %eax 13 %0 = icmp ugt i16 %x, 26 ; <i1> [#uses=1] 14 %iftmp.1.0 = select i1 %0, i16 32, i16 0 ; <i16> [#uses=1] 15 ret i16 %iftmp.1.0 16 } 17 18 define zeroext i16 @t2(i16 zeroext %x) nounwind readnone ssp { 19 entry: 20 ; CHECK-LABEL: t2: 21 ; CHECK: sbbl %eax, %eax 22 ; CHECK: andl $32, %eax 23 %0 = icmp ult i16 %x, 26 ; <i1> [#uses=1] 24 %iftmp.0.0 = select i1 %0, i16 32, i16 0 ; <i16> [#uses=1] 25 ret i16 %iftmp.0.0 26 } 27 28 define i64 @t3(i64 %x) nounwind readnone ssp { 29 entry: 30 ; CHECK-LABEL: t3: 31 ; CHECK: sbbq %rax, %rax 32 ; CHECK: andq $64, %rax 33 %0 = icmp ult i64 %x, 18 ; <i1> [#uses=1] 34 %iftmp.2.0 = select i1 %0, i64 64, i64 0 ; <i64> [#uses=1] 35 ret i64 %iftmp.2.0 36 } 37
