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395d7b084b
The (mostly-deprecated) SelectionDAG-based ILPListDAGScheduler scheduler was making poor scheduling decisions, causing high register pressure and extraneous register spills. Switching to the newer machine scheduler generates better code -- even without there being a machine model defined for SPARC yet. (Actually committing the test changes too, this time, unlike r247315) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@247343 91177308-0d34-0410-b5e6-96231b3b80d8
37 lines
1.3 KiB
LLVM
37 lines
1.3 KiB
LLVM
;RUN: llc -march=sparc < %s | FileCheck %s
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%struct.foo_t = type { i32, i32, i32 }
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define weak void @make_foo(%struct.foo_t* noalias sret %agg.result, i32 %a, i32 %b, i32 %c) nounwind {
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entry:
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;CHECK-LABEL: make_foo:
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;CHECK: ld [%sp+64], {{.+}}
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;CHECK: jmp %o7+12
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%0 = getelementptr inbounds %struct.foo_t, %struct.foo_t* %agg.result, i32 0, i32 0
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store i32 %a, i32* %0, align 4
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%1 = getelementptr inbounds %struct.foo_t, %struct.foo_t* %agg.result, i32 0, i32 1
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store i32 %b, i32* %1, align 4
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%2 = getelementptr inbounds %struct.foo_t, %struct.foo_t* %agg.result, i32 0, i32 2
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store i32 %c, i32* %2, align 4
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ret void
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}
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define i32 @test() nounwind {
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entry:
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;CHECK-LABEL: test:
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;CHECK: call make_foo
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;CHECK: st {{.+}}, [%sp+64]
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;CHECK: unimp 12
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%f = alloca %struct.foo_t, align 8
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call void @make_foo(%struct.foo_t* noalias sret %f, i32 10, i32 20, i32 30) nounwind
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%0 = getelementptr inbounds %struct.foo_t, %struct.foo_t* %f, i32 0, i32 0
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%1 = load i32, i32* %0, align 8
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%2 = getelementptr inbounds %struct.foo_t, %struct.foo_t* %f, i32 0, i32 1
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%3 = load i32, i32* %2, align 4
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%4 = getelementptr inbounds %struct.foo_t, %struct.foo_t* %f, i32 0, i32 2
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%5 = load i32, i32* %4, align 8
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%6 = add nsw i32 %3, %1
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%7 = add nsw i32 %6, %5
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ret i32 %7
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}
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