6f34d03b31
Fixes #102053 The check was added in 8decdc472f308b13d7fb7fd50c3919db086c0417, and at the time iOS 5 was the latest iOS version, before that commit tail calls were disabled for all ARMv7 targets. Testing a build of wasm3 with the patch on a device running iOS 3.0 shows a noticeable performance improvement and no issues.
34 lines
1.1 KiB
LLVM
34 lines
1.1 KiB
LLVM
; RUN: llc < %s -mtriple="arm-apple-ios3.0.0" | FileCheck %s
|
|
|
|
target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32-S32"
|
|
|
|
%struct.eggs = type { %struct.spam, i16 }
|
|
%struct.spam = type { [3 x i32] }
|
|
%struct.barney = type { [2 x i32], [2 x i32] }
|
|
|
|
; Make sure that the sext op does not get lost due to computeKnownBits.
|
|
; CHECK: quux
|
|
; CHECK: lsl
|
|
; CHECK: asr
|
|
; CHECK: b
|
|
define void @quux(ptr %arg) {
|
|
bb:
|
|
%tmp1 = getelementptr inbounds %struct.eggs, ptr %arg, i32 0, i32 1
|
|
%0 = load i16, ptr %tmp1, align 2
|
|
%tobool = icmp eq i16 %0, 0
|
|
br i1 %tobool, label %bb16, label %bb3
|
|
|
|
bb3: ; preds = %bb
|
|
%tmp5 = ptrtoint ptr %tmp1 to i32
|
|
%tmp6 = shl i32 %tmp5, 20
|
|
%tmp7 = ashr exact i32 %tmp6, 20
|
|
%tmp14 = getelementptr inbounds %struct.barney, ptr undef, i32 %tmp7
|
|
%tmp15 = tail call i32 @widget(ptr %tmp14, ptr %tmp1, i32 %tmp7)
|
|
br label %bb16
|
|
|
|
bb16: ; preds = %bb3, %bb
|
|
ret void
|
|
}
|
|
|
|
declare i32 @widget(ptr, ptr, i32)
|