[CIR][Lowering][Bugfix] Fix lowering of bool_to_int cast #450
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lanza
pushed a commit
that referenced
this pull request
Mar 23, 2024
The minimal bug repro:
```
#include <stdbool.h>
#include <stdint.h>
void bar() {
bool x = true;
uint8_t y = (uint8_t)x;
}
```
Fails on verification stage:
```
loc("repro.c":5:24): error: integer width of the output type is smaller or equal to the integer width of the input type
fatal error: error in backend: The pass manager failed to lower CIR to LLVMIR dialect!
```
The problem is that in some cases lowering from CIR emits the invalid
zext operation. PR fixes this issue by emitting the llvm.bitcast instead
of llvm.zext in such cases.
eZWALT
pushed a commit
to eZWALT/clangir
that referenced
this pull request
Mar 24, 2024
The minimal bug repro:
```
#include <stdbool.h>
#include <stdint.h>
void bar() {
bool x = true;
uint8_t y = (uint8_t)x;
}
```
Fails on verification stage:
```
loc("repro.c":5:24): error: integer width of the output type is smaller or equal to the integer width of the input type
fatal error: error in backend: The pass manager failed to lower CIR to LLVMIR dialect!
```
The problem is that in some cases lowering from CIR emits the invalid
zext operation. PR fixes this issue by emitting the llvm.bitcast instead
of llvm.zext in such cases.
lanza
pushed a commit
that referenced
this pull request
Apr 29, 2024
The minimal bug repro:
```
#include <stdbool.h>
#include <stdint.h>
void bar() {
bool x = true;
uint8_t y = (uint8_t)x;
}
```
Fails on verification stage:
```
loc("repro.c":5:24): error: integer width of the output type is smaller or equal to the integer width of the input type
fatal error: error in backend: The pass manager failed to lower CIR to LLVMIR dialect!
```
The problem is that in some cases lowering from CIR emits the invalid
zext operation. PR fixes this issue by emitting the llvm.bitcast instead
of llvm.zext in such cases.
lanza
pushed a commit
that referenced
this pull request
Apr 29, 2024
The minimal bug repro:
```
#include <stdbool.h>
#include <stdint.h>
void bar() {
bool x = true;
uint8_t y = (uint8_t)x;
}
```
Fails on verification stage:
```
loc("repro.c":5:24): error: integer width of the output type is smaller or equal to the integer width of the input type
fatal error: error in backend: The pass manager failed to lower CIR to LLVMIR dialect!
```
The problem is that in some cases lowering from CIR emits the invalid
zext operation. PR fixes this issue by emitting the llvm.bitcast instead
of llvm.zext in such cases.
eZWALT
pushed a commit
to eZWALT/clangir
that referenced
this pull request
Apr 29, 2024
The minimal bug repro:
```
#include <stdbool.h>
#include <stdint.h>
void bar() {
bool x = true;
uint8_t y = (uint8_t)x;
}
```
Fails on verification stage:
```
loc("repro.c":5:24): error: integer width of the output type is smaller or equal to the integer width of the input type
fatal error: error in backend: The pass manager failed to lower CIR to LLVMIR dialect!
```
The problem is that in some cases lowering from CIR emits the invalid
zext operation. PR fixes this issue by emitting the llvm.bitcast instead
of llvm.zext in such cases.
lanza
pushed a commit
that referenced
this pull request
Apr 29, 2024
The minimal bug repro:
```
#include <stdbool.h>
#include <stdint.h>
void bar() {
bool x = true;
uint8_t y = (uint8_t)x;
}
```
Fails on verification stage:
```
loc("repro.c":5:24): error: integer width of the output type is smaller or equal to the integer width of the input type
fatal error: error in backend: The pass manager failed to lower CIR to LLVMIR dialect!
```
The problem is that in some cases lowering from CIR emits the invalid
zext operation. PR fixes this issue by emitting the llvm.bitcast instead
of llvm.zext in such cases.
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The minimal bug repro:
Fails on verification stage:
The problem is that in some cases lowering from CIR emits the invalid zext operation. PR fixes this issue by emitting the llvm.bitcast instead of llvm.zext in such cases.