| ; RUN: llc -mcpu=pwr7 -mattr=-fpcvt < %s | FileCheck %s |
| target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32:64" |
| target triple = "powerpc64-unknown-linux-gnu" |
| |
| define float @test(i64 %x) nounwind readnone { |
| entry: |
| %conv = sitofp i64 %x to float |
| ret float %conv |
| } |
| |
| ; Verify that we get the code sequence needed to avoid double-rounding. |
| ; Note that only parts of the sequence are checked for here, to allow |
| ; for minor code generation differences. |
| |
| ; CHECK: sradi [[REG1:[0-9]+]], 3, 53 |
| ; CHECK: addi [[REG2:[0-9]+]], [[REG1]], 1 |
| ; CHECK: cmpldi 0, [[REG2]], 1 |
| ; CHECK: isel [[REG3:[0-9]+]], {{[0-9]+}}, 3, 1 |
| ; CHECK: std [[REG3]], -{{[0-9]+}}(1) |
| |
| |
| ; Also check that with -enable-unsafe-fp-math we do not get that extra |
| ; code sequence. Simply verify that there is no "isel" present. |
| |
| ; RUN: llc -mcpu=pwr7 -mattr=-fpcvt -enable-unsafe-fp-math < %s | FileCheck %s -check-prefix=CHECK-UNSAFE |
| ; CHECK-UNSAFE-NOT: isel |
| |
