33d008b169
Agreed policy is that RISC-V extensions that have not yet been ratified should be marked as experimental, and enabling them requires the use of the -menable-experimental-extensions flag when using clang alongside the version number. These extensions have now been ratified, so this is no longer necessary, and the target feature names can be renamed to no longer be prefixed with "experimental-". Differential Revision: https://reviews.llvm.org/D117131
75 lines
2.0 KiB
LLVM
75 lines
2.0 KiB
LLVM
; 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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; Check that we hoist zext.h without Zbb.
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define i32 @test5(i32 %a) nounwind {
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; CHECK-LABEL: test5
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; CHECK: %const = bitcast i32 65535 to i32
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%1 = and i32 %a, 65535
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%2 = and i32 %1, 65535
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ret i32 %2
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}
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; Check that we don't hoist zext.h with 65535 with Zbb.
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define i32 @test6(i32 %a) nounwind "target-features"="+zbb" {
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; CHECK-LABEL: test6
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; CHECK: and i32 %a, 65535
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%1 = and i32 %a, 65535
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%2 = and i32 %1, 65535
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ret i32 %2
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}
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; Check that we hoist zext.w without Zba.
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define i64 @test7(i64 %a) nounwind {
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; CHECK-LABEL: test7
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; CHECK: %const = bitcast i64 4294967295 to i64
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%1 = and i64 %a, 4294967295
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%2 = and i64 %1, 4294967295
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ret i64 %2
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}
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; Check that we don't hoist zext.w with Zba.
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define i64 @test8(i64 %a) nounwind "target-features"="+zbb" {
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; CHECK-LABEL: test8
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; CHECK: and i64 %a, 4294967295
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%1 = and i64 %a, 4294967295
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%2 = and i64 %1, 4294967295
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ret i64 %2
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}
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