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llvm-mirror/test/CodeGen/WebAssembly/fast-isel-noreg.ll
Wouter van Oortmerssen c7f8ab2cc1 [WebAssembly] Added default stack-only instruction mode for MC.
Summary:
Made it convert from register to stack based instructions, and removed the registers.
Fixes to related code that was expecting register based instructions.
Added the correct testing flag to all tests, depending on what the
format they were expecting so far.
Translated one test to stack format as example: reg-stackify-stack.ll

tested:
llvm-lit -v `find test -name WebAssembly`
unittests/MC/*

Reviewers: dschuff, sunfish

Subscribers: sbc100, jgravelle-google, eraman, aheejin, llvm-commits, jfb

Differential Revision: https://reviews.llvm.org/D51241

llvm-svn: 340750
2018-08-27 15:45:51 +00:00

90 lines
2.2 KiB
LLVM

; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-keep-registers -verify-machineinstrs | FileCheck %s
; RUN: llc < %s -asm-verbose=false -wasm-keep-registers -fast-isel -verify-machineinstrs | FileCheck %s
; Test that FastISel does not generate instructions with NoReg
target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
target triple = "wasm32-unknown-unknown"
; CHECK: i32.const $push0=, 0
define hidden i32 @a() #0 {
entry:
ret i32 zext (i1 icmp eq (void (...)* inttoptr (i32 10 to void (...)*), void (...)* null) to i32)
}
; CHECK: i32.const $push0=, 1
; CHECK: br_if 0, $pop0
define hidden i32 @b() #0 {
entry:
br i1 icmp eq (void (...)* inttoptr (i32 10 to void (...)*), void (...)* null), label %a, label %b
a:
unreachable
b:
ret i32 0
}
; CHECK: i32.const $push1=, 0
; CHECK: i32.const $push2=, 0
; CHECK: i32.store 0($pop1), $pop2
define hidden i32 @c() #0 {
entry:
store i32 zext (i1 icmp eq (void (...)* inttoptr (i32 10 to void (...)*), void (...)* null) to i32), i32* inttoptr (i32 0 to i32 *)
ret i32 0
}
; CHECK: i32.const {{.*}}, addr@FUNCTION
; CHECK: i32.const {{.*}}, 24
; CHECK: i32.shl
; CHECK: i32.const {{.*}}, 24
; CHECK: i32.shr_s
; CHECK: i32.const {{.*}}, 64
; CHECK: br_if 0, $pop0
define hidden i32 @d() #0 {
entry:
%t = icmp slt i8 ptrtoint (void ()* @addr to i8), 64
br i1 %t, label %a, label %b
a:
unreachable
b:
ret i32 0
}
; CHECK: i32.const {{.*}}, addr@FUNCTION
; CHECK: i32.const {{.*}}, 255
; CHECK: i32.and
; CHECK: i32.const {{.*}}, 64
; CHECK: br_if 0, $pop0
define hidden i32 @e() #0 {
entry:
%t = icmp ult i8 ptrtoint (void ()* @addr to i8), 64
br i1 %t, label %a, label %b
a:
unreachable
b:
ret i32 0
}
; CHECK: i32.const {{.*}}, addr@FUNCTION
; CHECK: i32.const {{.*}}, 24
; CHECK: i32.shl
; CHECK: i32.const {{.*}}, 24
; CHECK: i32.shr_s
define hidden i32 @f() #0 {
entry:
%t = sext i8 ptrtoint (void ()* @addr to i8) to i32
ret i32 %t
}
; CHECK: i32.const {{.*}}, addr@FUNCTION
; CHECK: i32.const {{.*}}, 255
; CHECK: i32.and
define hidden i32 @g() #0 {
entry:
%t = zext i8 ptrtoint (void ()* @addr to i8) to i32
ret i32 %t
}
declare void @addr()
attributes #0 = { noinline optnone }