File: trunc_ldr.ll

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (30 lines) | stat: -rw-r--r-- 800 bytes parent folder | download | duplicates (21)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
; RUN: llc -mtriple=arm-eabi %s -o - | FileCheck %s

	%struct.A = type { i8, i8, i8, i8, i16, i8, i8, %struct.B** }
	%struct.B = type { float, float, i32, i32, i32, [0 x i8] }

define i8 @f1(%struct.A* %d) {
	%tmp2 = getelementptr %struct.A, %struct.A* %d, i32 0, i32 4
	%tmp23 = bitcast i16* %tmp2 to i32*
	%tmp4 = load i32, i32* %tmp23
	%tmp512 = lshr i32 %tmp4, 24
	%tmp56 = trunc i32 %tmp512 to i8
	ret i8 %tmp56
}

define i32 @f2(%struct.A* %d) {
	%tmp2 = getelementptr %struct.A, %struct.A* %d, i32 0, i32 4
	%tmp23 = bitcast i16* %tmp2 to i32*
	%tmp4 = load i32, i32* %tmp23
	%tmp512 = lshr i32 %tmp4, 24
	%tmp56 = trunc i32 %tmp512 to i8
        %tmp57 = sext i8 %tmp56 to i32
	ret i32 %tmp57
}

; CHECK: ldrb{{.*}}7
; CHECK-NOT: ldrb{{.*}}7

; CHECK: ldrsb{{.*}}7
; CHECK-NOT: ldrsb{{.*}}7