cc.ll
1.5 KB
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; RUN: llc -verify-machineinstrs -mcpu=pwr7 < %s | FileCheck %s
target datalayout = "E-m:e-i64:64-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
define i64 @test1(i64 %a, i64 %b) {
entry:
%c = icmp eq i64 %a, %b
br label %foo
foo:
call { i64, i64 } asm sideeffect "sc", "={r0},={r3},{r0},~{cr0},~{cr1},~{cr2},~{cr3},~{cr4},~{cr5},~{cr6},~{cr7}" (i64 %a)
br i1 %c, label %bar, label %end
bar:
ret i64 %b
end:
ret i64 %a
; CHECK-LABEL: @test1
; CHECK: mfcr [[REG1:[0-9]+]]
; CHECK-DAG: cmpd
; CHECK-DAG: mfocrf [[REG2:[0-9]+]],
; CHECK-DAG: stw [[REG1]], 8(1)
; CHECK-DAG: stw [[REG2]], -4(1)
; CHECK: sc
; CHECK: lwz [[REG3:[0-9]+]], -4(1)
; CHECK: mtocrf 128, [[REG3]]
; CHECK: lwz [[REG4:[0-9]+]], 8(1)
; CHECK-DAG: mtocrf 32, [[REG4]]
; CHECK-DAG: mtocrf 16, [[REG4]]
; CHECK-DAG: mtocrf 8, [[REG4]]
; CHECK: blr
}
define i64 @test2(i64 %a, i64 %b) {
entry:
%c = icmp eq i64 %a, %b
br label %foo
foo:
call { i64, i64 } asm sideeffect "sc", "={r0},={r3},{r0},~{cc},~{cr1},~{cr2},~{cr3},~{cr4},~{cr5},~{cr6},~{cr7}" (i64 %a)
br i1 %c, label %bar, label %end
bar:
ret i64 %b
end:
ret i64 %a
; CHECK-LABEL: @test2
; CHECK: mfcr [[REG1:[0-9]+]]
; CHECK-DAG: cmpd
; CHECK-DAG: mfocrf [[REG2:[0-9]+]],
; CHECK-DAG: stw [[REG1]], 8(1)
; CHECK-DAG: stw [[REG2]], -4(1)
; CHECK: sc
; CHECK: lwz [[REG3:[0-9]+]], -4(1)
; CHECK: mtocrf 128, [[REG3]]
; CHECK: lwz [[REG4:[0-9]+]], 8(1)
; CHECK-DAG: mtocrf 32, [[REG4]]
; CHECK-DAG: mtocrf 16, [[REG4]]
; CHECK-DAG: mtocrf 8, [[REG4]]
; CHECK: blr
}