1 # RUN: llc -mtriple=s390x-linux-gnu -mcpu=z10 -no-integrated-as -start-after=block-placement %s -o - | FileCheck %s 2 # Test that LTEBR is used without an unnecessary LER 3 4 --- | 5 define float @f15(float %val, float %dummy, float* %dest) { 6 entry: 7 call void asm sideeffect "blah $0", "{f2}"(float %val) 8 %cmp = fcmp olt float %val, 0.000000e+00 9 br i1 %cmp, label %exit, label %store 10 11 store: ; preds = %entry 12 store float %val, float* %dest 13 br label %exit 14 15 exit: ; preds = %store, %entry 16 ret float %val 17 } 18 19 ... 20 21 # CHECK: ltebr %f2, %f0 22 23 --- 24 name: f15 25 tracksRegLiveness: true 26 liveins: 27 - { reg: '$f0s', virtual-reg: '' } 28 - { reg: '$r2d', virtual-reg: '' } 29 body: | 30 bb.0.entry: 31 liveins: $f0s, $r2d 32 33 LTEBRCompare $f0s, $f0s, implicit-def $cc 34 $f2s = LER $f0s 35 INLINEASM &"blah $0", 1, 9, $f2s 36 CondReturn 15, 4, implicit $f0s, implicit $cc 37 38 bb.1.store: 39 liveins: $f0s, $r2d 40 41 STE $f0s, killed $r2d, 0, $noreg :: (store 4 into %ir.dest) 42 Return implicit $f0s 43 44 ... 45
