tests_lit/llvm2ice_tests/convert.ll

; Simple test of signed and unsigned integer conversions.

; RUN: %llvm2ice -O2 --verbose none %s | FileCheck %s
; RUN: %llvm2ice -Om1 --verbose none %s | FileCheck %s
; RUIN: %llvm2ice -O2 --verbose none %s \
; RUIN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
; RUIN: %llvm2ice -Om1 --verbose none %s \
; RUIN:               | llvm-mc -arch=x86 -x86-asm-syntax=intel -filetype=obj
; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
; RUN:                           | FileCheck --check-prefix=DUMP %s

@i8v = internal global [1 x i8] zeroinitializer, align 1
@i16v = internal global [2 x i8] zeroinitializer, align 2
@i32v = internal global [4 x i8] zeroinitializer, align 4
@i64v = internal global [8 x i8] zeroinitializer, align 8
@u8v = internal global [1 x i8] zeroinitializer, align 1
@u16v = internal global [2 x i8] zeroinitializer, align 2
@u32v = internal global [4 x i8] zeroinitializer, align 4
@u64v = internal global [8 x i8] zeroinitializer, align 8

define void @from_int8() {
entry:
  %__0 = bitcast [1 x i8]* @i8v to i8*
  %v0 = load i8* %__0, align 1
  %v1 = sext i8 %v0 to i16
  %__3 = bitcast [2 x i8]* @i16v to i16*
  store i16 %v1, i16* %__3, align 1
  %v2 = sext i8 %v0 to i32
  %__5 = bitcast [4 x i8]* @i32v to i32*
  store i32 %v2, i32* %__5, align 1
  %v3 = sext i8 %v0 to i64
  %__7 = bitcast [8 x i8]* @i64v to i64*
  store i64 %v3, i64* %__7, align 1
  ret void
}
; CHECK: from_int8:
; CHECK: mov {{.*}}, byte ptr [
; CHECK: movsx
; CHECK: mov word ptr [
; CHECK: movsx
; CHECK: mov dword ptr [
; CHECK: movsx
; CHECK: sar {{.*}}, 31
; CHECK: i64v

define void @from_int16() {
entry:
  %__0 = bitcast [2 x i8]* @i16v to i16*
  %v0 = load i16* %__0, align 1
  %v1 = trunc i16 %v0 to i8
  %__3 = bitcast [1 x i8]* @i8v to i8*
  store i8 %v1, i8* %__3, align 1
  %v2 = sext i16 %v0 to i32
  %__5 = bitcast [4 x i8]* @i32v to i32*
  store i32 %v2, i32* %__5, align 1
  %v3 = sext i16 %v0 to i64
  %__7 = bitcast [8 x i8]* @i64v to i64*
  store i64 %v3, i64* %__7, align 1
  ret void
}
; CHECK: from_int16:
; CHECK: mov {{.*}}, word ptr [
; CHECK: i8v
; CHECK: movsx
; CHECK: i32v
; CHECK: movsx
; CHECK: sar {{.*}}, 31
; CHECK: i64v

define void @from_int32() {
entry:
  %__0 = bitcast [4 x i8]* @i32v to i32*
  %v0 = load i32* %__0, align 1
  %v1 = trunc i32 %v0 to i8
  %__3 = bitcast [1 x i8]* @i8v to i8*
  store i8 %v1, i8* %__3, align 1
  %v2 = trunc i32 %v0 to i16
  %__5 = bitcast [2 x i8]* @i16v to i16*
  store i16 %v2, i16* %__5, align 1
  %v3 = sext i32 %v0 to i64
  %__7 = bitcast [8 x i8]* @i64v to i64*
  store i64 %v3, i64* %__7, align 1
  ret void
}
; CHECK: from_int32:
; CHECK: i32v
; CHECK: i8v
; CHECK: i16v
; CHECK: sar {{.*}}, 31
; CHECK: i64v

define void @from_int64() {
entry:
  %__0 = bitcast [8 x i8]* @i64v to i64*
  %v0 = load i64* %__0, align 1
  %v1 = trunc i64 %v0 to i8
  %__3 = bitcast [1 x i8]* @i8v to i8*
  store i8 %v1, i8* %__3, align 1
  %v2 = trunc i64 %v0 to i16
  %__5 = bitcast [2 x i8]* @i16v to i16*
  store i16 %v2, i16* %__5, align 1
  %v3 = trunc i64 %v0 to i32
  %__7 = bitcast [4 x i8]* @i32v to i32*
  store i32 %v3, i32* %__7, align 1
  ret void
}
; CHECK: from_int64:
; CHECK: i64v
; CHECK: i8v
; CHECK: i16v
; CHECK: i32v

define void @from_uint8() {
entry:
  %__0 = bitcast [1 x i8]* @u8v to i8*
  %v0 = load i8* %__0, align 1
  %v1 = zext i8 %v0 to i16
  %__3 = bitcast [2 x i8]* @i16v to i16*
  store i16 %v1, i16* %__3, align 1
  %v2 = zext i8 %v0 to i32
  %__5 = bitcast [4 x i8]* @i32v to i32*
  store i32 %v2, i32* %__5, align 1
  %v3 = zext i8 %v0 to i64
  %__7 = bitcast [8 x i8]* @i64v to i64*
  store i64 %v3, i64* %__7, align 1
  ret void
}
; CHECK: from_uint8:
; CHECK: u8v
; CHECK: movzx
; CHECK: i16v
; CHECK: movzx
; CHECK: i32v
; CHECK: movzx
; CHECK: mov {{.*}}, 0
; CHECK: i64v

define void @from_uint16() {
entry:
  %__0 = bitcast [2 x i8]* @u16v to i16*
  %v0 = load i16* %__0, align 1
  %v1 = trunc i16 %v0 to i8
  %__3 = bitcast [1 x i8]* @i8v to i8*
  store i8 %v1, i8* %__3, align 1
  %v2 = zext i16 %v0 to i32
  %__5 = bitcast [4 x i8]* @i32v to i32*
  store i32 %v2, i32* %__5, align 1
  %v3 = zext i16 %v0 to i64
  %__7 = bitcast [8 x i8]* @i64v to i64*
  store i64 %v3, i64* %__7, align 1
  ret void
}
; CHECK: from_uint16:
; CHECK: u16v
; CHECK: i8v
; CHECK: movzx
; CHECK: i32v
; CHECK: movzx
; CHECK: mov {{.*}}, 0
; CHECK: i64v

define void @from_uint32() {
entry:
  %__0 = bitcast [4 x i8]* @u32v to i32*
  %v0 = load i32* %__0, align 1
  %v1 = trunc i32 %v0 to i8
  %__3 = bitcast [1 x i8]* @i8v to i8*
  store i8 %v1, i8* %__3, align 1
  %v2 = trunc i32 %v0 to i16
  %__5 = bitcast [2 x i8]* @i16v to i16*
  store i16 %v2, i16* %__5, align 1
  %v3 = zext i32 %v0 to i64
  %__7 = bitcast [8 x i8]* @i64v to i64*
  store i64 %v3, i64* %__7, align 1
  ret void
}
; CHECK: from_uint32:
; CHECK: u32v
; CHECK: i8v
; CHECK: i16v
; CHECK: mov {{.*}}, 0
; CHECK: i64v

define void @from_uint64() {
entry:
  %__0 = bitcast [8 x i8]* @u64v to i64*
  %v0 = load i64* %__0, align 1
  %v1 = trunc i64 %v0 to i8
  %__3 = bitcast [1 x i8]* @i8v to i8*
  store i8 %v1, i8* %__3, align 1
  %v2 = trunc i64 %v0 to i16
  %__5 = bitcast [2 x i8]* @i16v to i16*
  store i16 %v2, i16* %__5, align 1
  %v3 = trunc i64 %v0 to i32
  %__7 = bitcast [4 x i8]* @i32v to i32*
  store i32 %v3, i32* %__7, align 1
  ret void
}
; CHECK: from_uint64:
; CHECK: u64v
; CHECK: i8v
; CHECK: i16v
; CHECK: i32v

; ERRORS-NOT: ICE translation error
; DUMP-NOT: SZ