39 lines
1.1 KiB
LLVM
39 lines
1.1 KiB
LLVM
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; RUN: opt -mtriple=riscv32-unknown-elf -S -consthoist < %s | FileCheck %s
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; RUN: opt -mtriple=riscv64-unknown-elf -S -consthoist < %s | FileCheck %s
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; Check that we don't hoist immediates with small values.
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define i64 @test1(i64 %a) nounwind {
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; CHECK-LABEL: test1
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; CHECK-NOT: %const = bitcast i64 2 to i64
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%1 = mul i64 %a, 2
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%2 = add i64 %1, 2
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ret i64 %2
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}
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; Check that we don't hoist immediates with small values.
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define i64 @test2(i64 %a) nounwind {
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; CHECK-LABEL: test2
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; CHECK-NOT: %const = bitcast i64 2047 to i64
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%1 = mul i64 %a, 2047
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%2 = add i64 %1, 2047
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ret i64 %2
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}
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; Check that we hoist immediates with large values.
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define i64 @test3(i64 %a) nounwind {
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; CHECK-LABEL: test3
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; CHECK: %const = bitcast i64 32767 to i64
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%1 = mul i64 %a, 32767
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%2 = add i64 %1, 32767
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ret i64 %2
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}
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; Check that we hoist immediates with very large values.
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define i128 @test4(i128 %a) nounwind {
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; CHECK-LABEL: test4
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; CHECK: %const = bitcast i128 12297829382473034410122878 to i128
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%1 = add i128 %a, 12297829382473034410122878
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%2 = add i128 %1, 12297829382473034410122878
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ret i128 %2
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}
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