9b867b09c7
When an instruction has an `Imm64` immediate, but operates on values of a narrower width, we need to sign extend the value. Fixes #1095
40 lines
777 B
Plaintext
40 lines
777 B
Plaintext
test simple_preopt
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target x86_64
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;; Tests for sign-extending immediates.
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function %sign_extend_signed_icmp(i8) -> b1 {
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block0(v0: i8):
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; 255 = -1 as u8
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v1 = iconst.i8 255
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v2 = icmp sge v0, v1
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; check: v2 = icmp_imm sge v0, -1
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return v2
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}
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function %do_not_sign_extend_unsigned_icmp(i8) -> b1 {
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block0(v0: i8):
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v1 = iconst.i8 255
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v2 = icmp uge v0, v1
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; check: v2 = icmp_imm uge v0, 255
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return v2
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}
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function %sign_extend_sdiv(i8) -> i8 {
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block0(v0: i8):
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; 255 = -1 as u8
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v1 = iconst.i8 255
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v2 = sdiv v0, v1
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; check: v2 = sdiv_imm v0, -1
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return v2
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}
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function %sign_extend_srem(i8) -> i8 {
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block0(v0: i8):
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; 255 = -1 as u8
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v1 = iconst.i8 255
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v2 = srem v0, v1
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; check: v2 = srem_imm v0, -1
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return v2
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}
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