forked from OSchip/llvm-project
72 lines
2.2 KiB
LLVM
72 lines
2.2 KiB
LLVM
; RUN: llc < %s -asm-verbose=false | FileCheck %s
|
|
|
|
; Test that the wasm-store-results pass makes users of stored values use the
|
|
; result of store expressions to reduce get_local/set_local traffic.
|
|
|
|
target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
|
|
target triple = "wasm32-unknown-unknown"
|
|
|
|
; CHECK-LABEL: single_block:
|
|
; CHECK-NOT: local
|
|
; CHECK: i32.const $push{{[0-9]+}}=, 0{{$}}
|
|
; CHECK: i32.store $push[[STORE:[0-9]+]]=, 0($0), $pop{{[0-9]+}}{{$}}
|
|
; CHECK: return $pop[[STORE]]{{$}}
|
|
define i32 @single_block(i32* %p) {
|
|
entry:
|
|
store i32 0, i32* %p
|
|
ret i32 0
|
|
}
|
|
|
|
; Test interesting corner cases for wasm-store-results, in which the operand of
|
|
; a store ends up getting used by a phi, which needs special handling in the
|
|
; dominance test, since phis use their operands on their incoming edges.
|
|
|
|
%class.Vec3 = type { float, float, float }
|
|
|
|
@pos = global %class.Vec3 zeroinitializer, align 4
|
|
|
|
; CHECK-LABEL: foo:
|
|
; CHECK: i32.store $discard=, pos($pop{{[0-9]+}}), $pop{{[0-9]+}}{{$}}
|
|
define void @foo() {
|
|
for.body.i:
|
|
br label %for.body5.i
|
|
|
|
for.body5.i:
|
|
%i.0168.i = phi i32 [ 0, %for.body.i ], [ %inc.i, %for.body5.i ]
|
|
%conv6.i = sitofp i32 %i.0168.i to float
|
|
store volatile float 0.0, float* getelementptr inbounds (%class.Vec3, %class.Vec3* @pos, i32 0, i32 0)
|
|
%inc.i = add nuw nsw i32 %i.0168.i, 1
|
|
%exitcond.i = icmp eq i32 %inc.i, 256
|
|
br i1 %exitcond.i, label %for.cond.cleanup4.i, label %for.body5.i
|
|
|
|
for.cond.cleanup4.i:
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: bar:
|
|
; CHECK: i32.store $discard=, pos($pop{{[0-9]+}}), $pop{{[0-9]+}}{{$}}
|
|
define void @bar() {
|
|
for.body.i:
|
|
br label %for.body5.i
|
|
|
|
for.body5.i:
|
|
%i.0168.i = phi float [ 0.0, %for.body.i ], [ %inc.i, %for.body5.i ]
|
|
store volatile float 0.0, float* getelementptr inbounds (%class.Vec3, %class.Vec3* @pos, i32 0, i32 0)
|
|
%inc.i = fadd float %i.0168.i, 1.0
|
|
%exitcond.i = fcmp oeq float %inc.i, 256.0
|
|
br i1 %exitcond.i, label %for.cond.cleanup4.i, label %for.body5.i
|
|
|
|
for.cond.cleanup4.i:
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: fi_ret:
|
|
; CHECK: i32.store $discard=,
|
|
define hidden i8* @fi_ret(i8** %addr) {
|
|
entry:
|
|
%buf = alloca [27 x i8], align 16
|
|
%0 = getelementptr inbounds [27 x i8], [27 x i8]* %buf, i32 0, i32 0
|
|
store i8* %0, i8** %addr
|
|
ret i8* %0
|
|
}
|