forked from OSchip/llvm-project
65 lines
2.2 KiB
LLVM
65 lines
2.2 KiB
LLVM
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; RUN: llc -march=sparc < %s | FileCheck %s
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;; Ensure that spills and reloads work for various types on
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;; sparcv8.
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;; For i32/i64 tests, use an asm statement which clobbers most
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;; registers to ensure the spill will happen.
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; CHECK-LABEL: test_i32_spill:
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; CHECK: and %i0, %i1, %o0
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; CHECK: st %o0, [%fp+{{.+}}]
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; CHECK: add %o0, %o0, %g0
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; CHECK: ld [%fp+{{.+}}, %i0
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define i32 @test_i32_spill(i32 %a, i32 %b) {
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entry:
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%r0 = and i32 %a, %b
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; The clobber list has all registers except g0/o0. (Only o0 is usable.)
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%0 = call i32 asm sideeffect "add $0,$1,%g0", "=r,0,~{i0},~{i1},~{i2},~{i3},~{i4},~{i5},~{i6},~{i7},~{g1},~{g2},~{g3},~{g4},~{g5},~{g6},~{g7},~{l0},~{l1},~{l2},~{l3},~{l4},~{l5},~{l6},~{l7},~{o1},~{o2},~{o3},~{o4},~{o5},~{o6},~{o7}"(i32 %r0)
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ret i32 %r0
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}
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; CHECK-LABEL: test_i64_spill:
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; CHECK: and %i0, %i2, %o0
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; CHECK: and %i1, %i3, %o1
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; CHECK: std %o0, [%fp+{{.+}}]
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; CHECK: add %o0, %o0, %g0
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; CHECK: ldd [%fp+{{.+}}, %i0
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define i64 @test_i64_spill(i64 %a, i64 %b) {
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entry:
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%r0 = and i64 %a, %b
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; The clobber list has all registers except g0,g1,o0,o1. (Only o0/o1 are a usable pair)
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; So, o0/o1 must be used.
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%0 = call i64 asm sideeffect "add $0,$1,%g0", "=r,0,~{i0},~{i1},~{i2},~{i3},~{i4},~{i5},~{i6},~{i7},~{g2},~{g3},~{g4},~{g5},~{g6},~{g7},~{l0},~{l1},~{l2},~{l3},~{l4},~{l5},~{l6},~{l7},~{o2},~{o3},~{o4},~{o5},~{o7}"(i64 %r0)
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ret i64 %r0
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}
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;; For float/double tests, a call is a suitable clobber as *all* FPU
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;; registers are caller-save on sparcv8.
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; CHECK-LABEL: test_float_spill:
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; CHECK: fadds %f1, %f0, [[R:%[f][0-31]]]
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; CHECK: st [[R]], [%fp+{{.+}}]
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; CHECK: call
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; CHECK: ld [%fp+{{.+}}, %f0
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declare float @foo_float(float)
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define float @test_float_spill(float %a, float %b) {
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entry:
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%r0 = fadd float %a, %b
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%0 = call float @foo_float(float %r0)
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ret float %r0
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}
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; CHECK-LABEL: test_double_spill:
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; CHECK: faddd %f2, %f0, [[R:%[f][0-31]]]
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; CHECK: std [[R]], [%fp+{{.+}}]
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; CHECK: call
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; CHECK: ldd [%fp+{{.+}}, %f0
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declare double @foo_double(double)
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define double @test_double_spill(double %a, double %b) {
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entry:
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%r0 = fadd double %a, %b
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%0 = call double @foo_double(double %r0)
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ret double %r0
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}
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