25 lines
746 B
LLVM
25 lines
746 B
LLVM
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; RUN: llc < %s -mcpu=z196 -mtriple=s390x-linux-gnu -O0 \
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; RUN: -stop-before=regallocfast 2>&1 | FileCheck %s
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; RUN: llc < %s -mcpu=z196 -mtriple=s390x-linux-gnu -O3 \
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; RUN: -stop-before=livevars 2>&1 | FileCheck %s
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;
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; Test that copies to/from access registers are handled before regalloc with
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; GR32 regs.
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@x = dso_local thread_local global i32 0, align 4
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define weak_odr hidden i32* @fun0() {
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; CHECK: name: fun0
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; CHECK: {{%[0-9]+}}:gr32bit = EAR $a0
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; CHECK: {{%[0-9]+}}:gr32bit = EAR $a1
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ret i32* @x
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}
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define i32 @fun1() {
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; CHECK: name: fun1
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; CHECK: [[VREG0:%[0-9]+]]:gr32bit = COPY %0
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; CHECK-NEXT: $a1 = SAR [[VREG0]]
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; CHECK: {{%[0-9]+}}:gr32bit = EAR $a0
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%val = call i32 asm "blah", "={a0}, {a1}" (i32 0)
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ret i32 %val
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}
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