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Eliminate the stack slot used to save the global base register.

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The long branch pass (fixed in r160601) no longer uses the global base register
to compute addresses of branch destinations, so it is not necessary to reserve
a slot on the stack.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160703 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Akira Hatanaka
2012-07-25 03:16:47 +00:00
parent d9fb65dee6
commit de4a127470
8 changed files with 76 additions and 120 deletions
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48
test/CodeGen/Mips/o32_cc_byval.ll
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@@ -43,16 +43,16 @@ declare void @callee3(float, %struct.S3* byval, %struct.S1* byval)
define void @f2(float %f, %struct.S1* nocapture byval %s1) nounwind {
entry:
; CHECK: addiu $sp, $sp, -56
; CHECK: sw $7, 68($sp)
; CHECK: sw $6, 64($sp)
; CHECK: lw $4, 88($sp)
; CHECK: ldc1 $f[[F0:[0-9]+]], 80($sp)
; CHECK: lw $[[R3:[0-9]+]], 72($sp)
; CHECK: lw $[[R4:[0-9]+]], 76($sp)
; CHECK: lw $[[R2:[0-9]+]], 68($sp)
; CHECK: lh $[[R1:[0-9]+]], 66($sp)
; CHECK: lb $[[R0:[0-9]+]], 64($sp)
; CHECK: addiu $sp, $sp, -48
; CHECK: sw $7, 60($sp)
; CHECK: sw $6, 56($sp)
; CHECK: lw $4, 80($sp)
; CHECK: ldc1 $f[[F0:[0-9]+]], 72($sp)
; CHECK: lw $[[R3:[0-9]+]], 64($sp)
; CHECK: lw $[[R4:[0-9]+]], 68($sp)
; CHECK: lw $[[R2:[0-9]+]], 60($sp)
; CHECK: lh $[[R1:[0-9]+]], 58($sp)
; CHECK: lb $[[R0:[0-9]+]], 56($sp)
; CHECK: sw $[[R0]], 32($sp)
; CHECK: sw $[[R1]], 28($sp)
; CHECK: sw $[[R2]], 24($sp)
@@ -80,13 +80,13 @@ declare void @callee4(i32, double, i64, i32, i16 signext, i8 signext, float)
define void @f3(%struct.S2* nocapture byval %s2) nounwind {
entry:
; CHECK: addiu $sp, $sp, -56
; CHECK: sw $7, 68($sp)
; CHECK: sw $6, 64($sp)
; CHECK: sw $5, 60($sp)
; CHECK: sw $4, 56($sp)
; CHECK: lw $4, 56($sp)
; CHECK: lw $[[R0:[0-9]+]], 68($sp)
; CHECK: addiu $sp, $sp, -48
; CHECK: sw $7, 60($sp)
; CHECK: sw $6, 56($sp)
; CHECK: sw $5, 52($sp)
; CHECK: sw $4, 48($sp)
; CHECK: lw $4, 48($sp)
; CHECK: lw $[[R0:[0-9]+]], 60($sp)
; CHECK: sw $[[R0]], 24($sp)
%arrayidx = getelementptr inbounds %struct.S2* %s2, i32 0, i32 0, i32 0
@@ -99,13 +99,13 @@ entry:
define void @f4(float %f, %struct.S3* nocapture byval %s3, %struct.S1* nocapture byval %s1) nounwind {
entry:
; CHECK: addiu $sp, $sp, -56
; CHECK: sw $7, 68($sp)
; CHECK: sw $6, 64($sp)
; CHECK: sw $5, 60($sp)
; CHECK: lw $4, 68($sp)
; CHECK: lw $[[R1:[0-9]+]], 88($sp)
; CHECK: lb $[[R0:[0-9]+]], 60($sp)
; CHECK: addiu $sp, $sp, -48
; CHECK: sw $7, 60($sp)
; CHECK: sw $6, 56($sp)
; CHECK: sw $5, 52($sp)
; CHECK: lw $4, 60($sp)
; CHECK: lw $[[R1:[0-9]+]], 80($sp)
; CHECK: lb $[[R0:[0-9]+]], 52($sp)
; CHECK: sw $[[R0]], 32($sp)
; CHECK: sw $[[R1]], 24($sp)