| ; RUN: opt -mtriple=riscv32-unknown-elf -S -consthoist < %s | FileCheck %s |
| ; RUN: opt -mtriple=riscv64-unknown-elf -S -consthoist < %s | FileCheck %s |
| |
| ; Check that we don't hoist immediates with small values. |
| define i64 @test1(i64 %a) nounwind { |
| ; CHECK-LABEL: test1 |
| ; CHECK-NOT: %const = bitcast i64 2 to i64 |
| %1 = mul i64 %a, 2 |
| %2 = add i64 %1, 2 |
| ret i64 %2 |
| } |
| |
| ; Check that we don't hoist immediates with small values. |
| define i64 @test2(i64 %a) nounwind { |
| ; CHECK-LABEL: test2 |
| ; CHECK-NOT: %const = bitcast i64 2047 to i64 |
| %1 = mul i64 %a, 2047 |
| %2 = add i64 %1, 2047 |
| ret i64 %2 |
| } |
| |
| ; Check that we hoist immediates with large values. |
| define i64 @test3(i64 %a) nounwind { |
| ; CHECK-LABEL: test3 |
| ; CHECK: %const = bitcast i64 32767 to i64 |
| %1 = mul i64 %a, 32767 |
| %2 = add i64 %1, 32767 |
| ret i64 %2 |
| } |
| |
| ; Check that we hoist immediates with very large values. |
| define i128 @test4(i128 %a) nounwind { |
| ; CHECK-LABEL: test4 |
| ; CHECK: %const = bitcast i128 12297829382473034410122878 to i128 |
| %1 = add i128 %a, 12297829382473034410122878 |
| %2 = add i128 %1, 12297829382473034410122878 |
| ret i128 %2 |
| } |
| |
| ; Check that we hoist zext.h without Zbb. |
| define i32 @test5(i32 %a) nounwind { |
| ; CHECK-LABEL: test5 |
| ; CHECK: %const = bitcast i32 65535 to i32 |
| %1 = and i32 %a, 65535 |
| %2 = and i32 %1, 65535 |
| ret i32 %2 |
| } |
| |
| ; Check that we don't hoist zext.h with 65535 with Zbb. |
| define i32 @test6(i32 %a) nounwind "target-features"="+experimental-zbb" { |
| ; CHECK-LABEL: test6 |
| ; CHECK: and i32 %a, 65535 |
| %1 = and i32 %a, 65535 |
| %2 = and i32 %1, 65535 |
| ret i32 %2 |
| } |
| |
| ; Check that we hoist zext.w without Zba. |
| define i64 @test7(i64 %a) nounwind { |
| ; CHECK-LABEL: test7 |
| ; CHECK: %const = bitcast i64 4294967295 to i64 |
| %1 = and i64 %a, 4294967295 |
| %2 = and i64 %1, 4294967295 |
| ret i64 %2 |
| } |
| |
| ; Check that we don't hoist zext.w with Zba. |
| define i64 @test8(i64 %a) nounwind "target-features"="+experimental-zbb" { |
| ; CHECK-LABEL: test8 |
| ; CHECK: and i64 %a, 4294967295 |
| %1 = and i64 %a, 4294967295 |
| %2 = and i64 %1, 4294967295 |
| ret i64 %2 |
| } |