blob: 689e10e70ff1fee95deb92a1c2e3761cfd54fc6d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
|
; 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
}
|
