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920c7d7490
This saves a small amount of code size, and is a first small step toward passing values on the stack across block boundaries. Differential Review: http://reviews.llvm.org/D20450 llvm-svn: 270294
97 lines
2.2 KiB
LLVM
97 lines
2.2 KiB
LLVM
; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt | FileCheck %s
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; Test that extending loads are assembled properly.
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target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
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target triple = "wasm32-unknown-unknown"
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; CHECK-LABEL: sext_i8_i32:
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; CHECK: i32.load8_s $push0=, 0($0){{$}}
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; CHECK-NEXT: return $pop0{{$}}
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define i32 @sext_i8_i32(i8 *%p) {
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%v = load i8, i8* %p
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%e = sext i8 %v to i32
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ret i32 %e
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}
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; CHECK-LABEL: zext_i8_i32:
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; CHECK: i32.load8_u $push0=, 0($0){{$}}
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; CHECK-NEXT: return $pop0{{$}}
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define i32 @zext_i8_i32(i8 *%p) {
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%v = load i8, i8* %p
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%e = zext i8 %v to i32
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ret i32 %e
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}
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; CHECK-LABEL: sext_i16_i32:
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; CHECK: i32.load16_s $push0=, 0($0){{$}}
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; CHECK-NEXT: return $pop0{{$}}
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define i32 @sext_i16_i32(i16 *%p) {
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%v = load i16, i16* %p
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%e = sext i16 %v to i32
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ret i32 %e
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}
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; CHECK-LABEL: zext_i16_i32:
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; CHECK: i32.load16_u $push0=, 0($0){{$}}
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; CHECK-NEXT: return $pop0{{$}}
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define i32 @zext_i16_i32(i16 *%p) {
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%v = load i16, i16* %p
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%e = zext i16 %v to i32
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ret i32 %e
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}
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; CHECK-LABEL: sext_i8_i64:
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; CHECK: i64.load8_s $push0=, 0($0){{$}}
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; CHECK-NEXT: return $pop0{{$}}
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define i64 @sext_i8_i64(i8 *%p) {
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%v = load i8, i8* %p
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%e = sext i8 %v to i64
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ret i64 %e
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}
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; CHECK-LABEL: zext_i8_i64:
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; CHECK: i64.load8_u $push0=, 0($0){{$}}
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; CHECK-NEXT: return $pop0{{$}}
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define i64 @zext_i8_i64(i8 *%p) {
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%v = load i8, i8* %p
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%e = zext i8 %v to i64
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ret i64 %e
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}
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; CHECK-LABEL: sext_i16_i64:
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; CHECK: i64.load16_s $push0=, 0($0){{$}}
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; CHECK-NEXT: return $pop0{{$}}
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define i64 @sext_i16_i64(i16 *%p) {
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%v = load i16, i16* %p
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%e = sext i16 %v to i64
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ret i64 %e
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}
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; CHECK-LABEL: zext_i16_i64:
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; CHECK: i64.load16_u $push0=, 0($0){{$}}
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; CHECK-NEXT: return $pop0{{$}}
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define i64 @zext_i16_i64(i16 *%p) {
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%v = load i16, i16* %p
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%e = zext i16 %v to i64
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ret i64 %e
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}
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; CHECK-LABEL: sext_i32_i64:
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; CHECK: i64.load32_s $push0=, 0($0){{$}}
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; CHECK-NEXT: return $pop0{{$}}
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define i64 @sext_i32_i64(i32 *%p) {
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%v = load i32, i32* %p
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%e = sext i32 %v to i64
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ret i64 %e
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}
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; CHECK-LABEL: zext_i32_i64:
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; CHECK: i64.load32_u $push0=, 0($0){{$}}
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; CHECK: return $pop0{{$}}
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define i64 @zext_i32_i64(i32 *%p) {
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%v = load i32, i32* %p
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%e = zext i32 %v to i64
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ret i64 %e
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}
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