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https://github.com/c64scene-ar/llvm-6502.git
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56 lines
1.5 KiB
LLVM
56 lines
1.5 KiB
LLVM
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; RUN: llc -mtriple=aarch64-linux-gnu -o - %s | FileCheck %s
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%big = type i32
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@var = global %big 0
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; AAPCS: low 8 bits of %in (== w0) will be either 0 or 1. Need to extend to
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; 32-bits.
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define void @consume_i1_arg(i1 %in) {
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; CHECK-LABEL: consume_i1_arg:
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; CHECK: and [[BOOL32:w[0-9]+]], w0, #{{0x1|0xff}}
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; CHECK: str [[BOOL32]], [{{x[0-9]+}}, :lo12:var]
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%val = zext i1 %in to %big
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store %big %val, %big* @var
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ret void
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}
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; AAPCS: low 8 bits of %val1 (== w0) will be either 0 or 1. Need to extend to
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; 32-bits (doesn't really matter if it's from 1 or 8 bits).
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define void @consume_i1_ret() {
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; CHECK-LABEL: consume_i1_ret:
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; CHECK: bl produce_i1_ret
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; CHECK: and [[BOOL32:w[0-9]+]], w0, #{{0x1|0xff}}
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; CHECK: str [[BOOL32]], [{{x[0-9]+}}, :lo12:var]
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%val1 = call i1 @produce_i1_ret()
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%val = zext i1 %val1 to %big
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store %big %val, %big* @var
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ret void
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}
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; AAPCS: low 8 bits of w0 must be either 0 or 1. Need to mask them off.
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define i1 @produce_i1_ret() {
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; CHECK-LABEL: produce_i1_ret:
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; CHECK: ldr [[VAR32:w[0-9]+]], [{{x[0-9]+}}, :lo12:var]
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; CHECK: and w0, [[VAR32]], #{{0x1|0xff}}
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%val = load %big* @var
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%val1 = trunc %big %val to i1
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ret i1 %val1
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}
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define void @produce_i1_arg() {
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; CHECK-LABEL: produce_i1_arg:
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; CHECK: ldr [[VAR32:w[0-9]+]], [{{x[0-9]+}}, :lo12:var]
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; CHECK: and w0, [[VAR32]], #{{0x1|0xff}}
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; CHECK: bl consume_i1_arg
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%val = load %big* @var
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%val1 = trunc %big %val to i1
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call void @consume_i1_arg(i1 %val1)
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ret void
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}
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;define zeroext i1 @foo(i8 %in) {
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; %val = trunc i8 %in to i1
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; ret i1 %val
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;}
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